Glock pistol
Overview
 
The Glock pistol, sometimes referred to by the manufacturer as Glock "Safe Action" Pistol, is a series of semi-automatic pistols designed and produced by Glock  Ges.m.b.H.
Gesellschaft mit beschränkter Haftung
Gesellschaft mit beschränkter Haftung is a type of legal entityvery common in Germany, Austria, Switzerland, and other Central European countries...

, located in Deutsch-Wagram
Deutsch-Wagram
Deutsch-Wagram is a city in Austria in the federal state of Lower Austria. It lies 15 km northeast of Vienna and has a population of 6,808 as of the 2001 census.- History :...

, Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

. The company's founder, engineer
Engineer
An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...

 Gaston Glock
Gaston Glock
Gaston Glock is an Austrian engineer, and founder of the firearms company Glock. The Glock "safe-action" pistol is well regarded and has often been copied by other companies...

, had no experience with firearm design or manufacture at the time their first pistol, the Glock 17, was being prototype
Prototype
A prototype is an early sample or model built to test a concept or process or to act as a thing to be replicated or learned from.The word prototype derives from the Greek πρωτότυπον , "primitive form", neutral of πρωτότυπος , "original, primitive", from πρῶτος , "first" and τύπος ,...

d. Glock did, however, have extensive experience in advanced synthetic polymer
Polymer
A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds...

s, knowledge of which was instrumental in the company's design of the first successful line of pistols with a polymer frame.
Encyclopedia
The Glock pistol, sometimes referred to by the manufacturer as Glock "Safe Action" Pistol, is a series of semi-automatic pistols designed and produced by Glock  Ges.m.b.H.
Gesellschaft mit beschränkter Haftung
Gesellschaft mit beschränkter Haftung is a type of legal entityvery common in Germany, Austria, Switzerland, and other Central European countries...

, located in Deutsch-Wagram
Deutsch-Wagram
Deutsch-Wagram is a city in Austria in the federal state of Lower Austria. It lies 15 km northeast of Vienna and has a population of 6,808 as of the 2001 census.- History :...

, Austria
Austria
Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

. The company's founder, engineer
Engineer
An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...

 Gaston Glock
Gaston Glock
Gaston Glock is an Austrian engineer, and founder of the firearms company Glock. The Glock "safe-action" pistol is well regarded and has often been copied by other companies...

, had no experience with firearm design or manufacture at the time their first pistol, the Glock 17, was being prototype
Prototype
A prototype is an early sample or model built to test a concept or process or to act as a thing to be replicated or learned from.The word prototype derives from the Greek πρωτότυπον , "primitive form", neutral of πρωτότυπος , "original, primitive", from πρῶτος , "first" and τύπος ,...

d. Glock did, however, have extensive experience in advanced synthetic polymer
Polymer
A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds...

s, knowledge of which was instrumental in the company's design of the first successful line of pistols with a polymer frame. Glock introduced ferritic nitrocarburizing
Ferritic nitrocarburizing
Ferritic nitrocarburizing is a range of case hardening processes that diffuse nitrogen and carbon into ferrous metals at sub-critical temperatures. The processing temperature ranges from to , but usually occurs at...

 into the firearms industry as an anti-corrosion surface treatment for metal gun parts.

Despite initial resistance from the market to accept a "plastic gun" due to durability and reliability concerns, Glock pistols have become the company's most profitable line of products, commanding 65% of the market share of handguns for United States law enforcement agencies
Law enforcement agency
In North American English, a law enforcement agency is a government agency responsible for the enforcement of the laws.Outside North America, such organizations are called police services. In North America, some of these services are called police while others have other names In North American...

 as well as supplying numerous national armed forces and security agencies worldwide.

Development

In 1980, the Austrian military announced that it would seek tenders for a new, modern duty pistol to replace their World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

-era Walther P38 handguns. The Austrian Ministry of Defence formulated a list of 17 criteria for the new generation service pistol:
  1. The design has to be self-loading.
  2. The pistol must fire the NATO-standard 9×19mm Parabellum round.
  3. The magazines would not require any means of assistance for loading.
  4. The magazines must have a minimum capacity of 8 rounds.
  5. All actions necessary to prepare the pistol for firing and any actions required after firing must be done single-handed, either right- or left-handed.
  6. The pistol must be absolutely secure against accidental discharge from shock, stroke and drops from a height of 2 meters onto a steel plate.
  7. Disassembly of the main parts for maintenance and reassembling must be possible without the use of any tools.
  8. Maintenance and cleaning of the pistol must be accomplished without the use of tools.
  9. The pistol's construction may not exceed 58 individual parts (equivalent of a P38).
  10. Gauges, measuring and precise testing devices must not be necessary for the long-term maintenance of the pistol.
  11. The manufacturer is required to provide the Ministry of Defence with a complete set of engineering drawing
    Engineering drawing
    An engineering drawing, a type of technical drawing, is used to fully and clearly define requirements for engineered items.Engineering drawing produces engineering drawings . More than just the drawing of pictures, it is also a language—a graphical language that communicates ideas and information...

    s and exploded views. These must be supplied with all the relevant details for the production of the pistol.
  12. All components must be fully interchangeable between pistols.
  13. No more than 20 malfunctions are permitted during the first 10,000 rounds fired, not even minor jams that can be cleared without the use of any tools.
  14. After firing 15,000 rounds of standard ammunition, the pistol will be inspected for wear. The pistol will then be used to fire an overpressure test cartridge generating 5000 bar (500 MPa; 72,518.9 psi) (the normal maximum operating pressure Pmax for the 9 mm NATO is rated at 2520 bar (252 MPa; 36,549.5 psi). The critical components must continue to function properly and be up to specifications, otherwise the pistol will be disqualified.
  15. When handled properly, under no circumstances may the user be endangered by case ejection.
  16. The muzzle energy must be at least 441.5 J
    Joule
    The joule ; symbol J) is a derived unit of energy or work in the International System of Units. It is equal to the energy expended in applying a force of one newton through a distance of one metre , or in passing an electric current of one ampere through a resistance of one ohm for one second...

     when firing a 9mm S-round/P-08 Hirtenberger AG.
  17. Pistols scoring less than 70% of the total available points will not be considered for military use.


Glock became aware of the Austrian Army's planned procurement and in 1982 assembled a team of Europe's leading handgun experts from military, police and civilian sport shooting circles to define the most desirable characteristics in a combat pistol. Within three months, Glock developed a working prototype. The new weapon made extensive use of synthetic materials and modern manufacturing technologies in its design, making it a very cost-effective candidate. Several samples of the 9×19mm Glock 17 (so named because it was the 17th patent of the company) were submitted for assessment trials in early 1982, and after passing all of the exhaustive endurance and abuse tests, Glock emerged as the winner with the Model 17.

The handgun was adopted into service with the Austrian military and police forces in 1982 as the P80 (Pistole 80), with an initial order for 25,000 guns. The Glock 17 outperformed 8 different pistols from five other established manufacturers (Heckler & Koch
Heckler & Koch
Heckler & Koch GmbH is a German defense manufacturing company that produces various small arms. Some of their products include the SA80, MP5 submachine gun, G3 automatic rifle, the G36 assault rifle, the HK 416, the MP7 personal defense weapon, the USP series of handguns, and the high-precision...

 offered their P7M8, P7M13 and P9S, SIG-Sauer
Schweizerische Industrie Gesellschaft
Schweizerische Industrie Gesellschaft , or SIG, is the former name of SIG Holding AG, a Swiss company that has been active in various businesses during its more than 150 years of operation. Since the year 2000 the Society has undergone strategic refocus, concentrating on its core compentence in...

 of Switzerland
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

 bid with their P220
SIG P220
The SIG P220 is a semi-automatic pistol designed in Switzerland by Swiss Arms AG . It is manufactured in Eckernförde, Germany, by J.P. Sauer und Sohn GmbH. It uses the Browning linkless cam short recoil action of self-loading with a double action trigger mechanism...

 and P226
SIG P226
The SIG P226 is a full-sized, service-type pistol made by SIG Sauer. It is chambered for the 9×19mm Parabellum, .40 S&W, .357 SIG, and .22 Long Rifle. It is essentially the same basic design of the SIG P220, but developed to use higher capacity, staggered-column magazines in place of the...

 models, Beretta
Beretta
Fabbrica d'Armi Pietro Beretta is an Italian firearms manufacturer. Their firearms are used worldwide for a variety of civilian, law enforcement, and military purposes. It is also known for manufacturing shooting clothes and accessories. Beretta is the oldest active firearms manufacturer in the...

 of Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 submitted their model 92SB-F, FN Herstal
Fabrique Nationale de Herstal
Fabrique Nationale d'Herstal — self identified as FN Herstal and often referred to as Fabrique Nationale or simply FN — is a firearms manufacturer located in Herstal, Belgium....

 proposed an updated variant of the Browning Hi-Power
Browning Hi-Power
The Browning Hi-Power is a single-action, 9 mm semi-automatic handgun. It is based on a design by American firearms inventor John Browning, and completed by Dieudonné Saive at Fabrique Nationale of Herstal, Belgium. Browning died in 1926, several years before the design was finalized...

 and the home-grown Steyr
Steyr
Steyr is a town, located in the Austrian federal state of Upper Austria. The town is situated at the confluence of the rivers Steyr and Enns. Steyr is Austria's 12th most populated town and simultaneously the 3rd largest town in Upper Austria....

 entered the competition with the GB
Steyr GB
The Steyr GB, is a double-action 9×19mm Parabellum caliber, large-framed semi-automatic pistol. The GB uses a gas-delayed blowback action and has a magazine capacity of 18 rounds...

).

The results of the Austrian trials sparked a wave of interest in Western Europe and overseas, particularly in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, where a similar effort to select a service-wide replacement for the M1911 had been ongoing since the late 1970s (known as the Joint Service Small Arms Program
Joint Service Small Arms Program
The Joint Service Small Arms Program, abbreviated JSSAP, was created to coordinate weapon standardization between the various U.S. armed service branches....

). In late 1983, the United States Department of Defense
United States Department of Defense
The United States Department of Defense is the U.S...

 inquired about the Glock pistol and received four samples of the Glock 17 for unofficial evaluation. Glock was then invited to participate in the XM9 Personal Defense Pistol Trials, but declined because the DOD specifications would require extensive retooling of production equipment and providing 35 test samples in an unrealistic time frame.

Shortly thereafter, the Glock 17 was accepted into service with the Norwegian, and Swedish Armed Forces
Swedish Armed Forces
The Swedish Armed Forces is a Swedish Government Agency responsible for the operation of the armed forces of the Realm. The primary task of the agency is to train, organize and to deploy military forces, domestically and abroad, while maintaining the long-term ability to defend the Realm in the...

, surpassing all prior NATO durability standards. As a result, the Glock 17 became a standard NATO-classified sidearm and was granted a NATO Stock Number
NATO Stock Number
A NATO Stock Number, or National Stock Number as it is known in the US, is a 13-digit numeric code, identifying all the 'standardized material items of supply' as they have been recognized by all NATO countries including United States Department of Defense...

 (1005-25-133-6775).

By 1992, some 350,000 pistols had been sold in more than 45 countries, including 250,000 in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 alone.

Product evolution

The Glock was modified several times throughout its production history. In 1991, an integrated recoil spring assembly replaced the original two-piece recoil spring and tube design. The magazine was slightly modified, changing the floorplate and fitting the follower spring with a resistance insert at its base.

Second generation models

A mid-life upgrade to the Glock pistols involved the addition of checkering on the front strap and serrations to the back strap. These versions were introduced in 1988 and are informally referred to as "second generation" models. To meet American ATF
Bureau of Alcohol, Tobacco, Firearms and Explosives
The Bureau of Alcohol, Tobacco, Firearms and Explosives is a federal law enforcement organization within the United States Department of Justice...

 regulations, a steel plate with a stamped serial number was embedded into the receiver in front of the trigger guard.

Third generation models

In the late 1990s, the frame was further modified with an accessory rail (called the "Universal Glock rail") to allow the mounting of laser sights, tactical light
Tactical light
A tactical light is a flashlight used in conjunction with a firearm to aid low light target identification, allowing the marksman to simultaneously aim and illuminate the target. Tactical lights can be handheld or mounted to the weapon with the light beam parallel to the bore...

s, and other accessories. Thumb rests on both sides of the frame and finger grooves on the front strap were added. Glock pistols with these upgrades are informally referred to as (early) "third generation" models.

Later third generation models additionally featured a modified extractor that serves as a loaded chamber indicator
Loaded chamber indicator
The loaded chamber indicator is a safety device present on many semi-automatic slide handguns intended to alert an operator that there is a round in the chamber...

, and the locking block was enlarged, along with the addition of an extra cross pin to aid the distribution of forces exerted by the locking block. This cross pin is known as the locking block pin and located above the trigger pin.

The polymer frames of third generation models can be black or olive drab. Besides that, non-firing dummy pistols ("R" models) have a bright red frame and Simunition
Simunition
Simunition is a trademark for training ammunition produced by General Dynamics - Ordnance and Tactical Systems Canada Inc. of Québec, Canada. Simunition encompasses many types of training rounds, the best-known being the FX Marking Cartridge....

-adapted practice pistols ("T" models)—a bright blue frame for easy identification.

In 2009, the Glock 22 RTF2 (Rough Texture Frame 2) (chambered in .40 S&W) was introduced. This pistol featured a new checkering texture around the grip and new scalloped (fish gill shaped) serrations at the rear of the sides of the slide.

Fourth generation models

At the 2010 SHOT Show
SHOT Show
The ' is an annual tradeshow for the shooting, hunting, and firearms industry. It is the biggest event of this type in the world together with IWA & OutdoorClassics , also taking place annually. "SHOT", besides being a general reference to shooting, is an acronym for "Shooting, Hunting and Outdoor...

, Glock presented the "fourth generation" design, with updates centered on ergonomics and the recoil spring assembly. The fourth generation models do not have total parts modularity with its predecessors, meaning not all parts can be mixed and matched with previous Glock generations. The initial two fourth generation models announced were the full-size Glock 17 and Glock 22, chambered for the 9×19mm Parabellum and .40 S&W cartridges, respectively. The pistols were displayed with a modified rough texture frame, grip checkering, and interchangeable backstraps of different sizes. "Gen4" is rollmarked on the slide next to the model number to identify the fourth generation pistols.

The basic grip size of the fourth generation Glock pistols is slightly smaller compared to the previous design. A punch is provided to remove the standard trigger housing pin and replace it for the longer cross pin needed to mount the medium or large backstrap. With the medium backstrap installed, the grip size is comparable to the third generation pistols. The magazine release catches are enlarged and reversible for left-handed use. To utilize the swappable magazine release feature, fourth generation Glock magazines have two notches cut on both sides of the magazine body.

Mechanically, fourth generation Glock pistols are fitted with a dual recoil spring assembly to help reduce perceived recoil and increase service life expectancy. Earlier subcompact Glock models such as the Glock 26 have already used a dual recoil spring assembly which was carried over to the fourth generation versions of those models. The slide and barrel shelf have been resized, and the front portion of the polymer frame has been widened and internally enlarged, in order to accommodate the dual recoil spring assembly. The trigger mechanism housing has also been modified to fit into the smaller sized grip space.

The introduction of fourth generation Glock pistols continued in July 2010 when the Glock 19 and Glock 23, the reduced size "compact" versions of the Glock 17 and Glock 22, became available for retail. In late 2010 Glock continued the introduction of fourth generation models with the Glock 26 and Glock 27 "subcompact" variants.
2011 recoil spring assembly exchange program

In September 2011 Glock announced a recoil spring exchange program in which the manufacturer voluntarily offers to exchange the recoil spring assemblies of its fourth generation pistols (with the exception of the "subcompact" Glock 26 and Glock 27 models) sold before 22 July 2011 at no cost “in order to ensure our products perform up to GLOCK’s stringent standards,” according to the company.

Operating mechanism

The Glock 17 is a 9mm short recoil-operated locked breech semi-automatic pistol that uses a modified Browning
John Browning
John Moses Browning , born in Ogden, Utah, was an American firearms designer who developed many varieties of military and civilian firearms, cartridges, and gun mechanisms, many of which are still in use around the world...

 cam-lock system adapted from the Hi-Power
Browning Hi-Power
The Browning Hi-Power is a single-action, 9 mm semi-automatic handgun. It is based on a design by American firearms inventor John Browning, and completed by Dieudonné Saive at Fabrique Nationale of Herstal, Belgium. Browning died in 1926, several years before the design was finalized...

 pistol. The firearm's locking mechanism utilizes a linkless, vertically tilting barrel with a rectangular breech that locks into the ejection port cut-out in the slide
Pistol slide
The slide is the part of the weapon on a majority of semi-automatic pistols that moves during the operating cycle and generally houses the firing pin or striker and the extractor, and serves as the bolt...

. During the recoil stroke, the barrel moves rearward initially locked together with the slide approximately 3 mm (0.118110236220472 in) until the bullet leaves the barrel and chamber pressure drops to a safe level. A ramped lug extension at the base of the barrel then interacts with a tapered locking block integrated into the frame, forcing the barrel down and unlocking it from the slide. This camming action terminates the barrel's movement while the slide continues back under recoil, extracting and ejecting the spent cartridge casing. The slide's uninterrupted rearward movement and counter-recoil cycle are characteristic of the Browning system.

Features

The slide features a spring-loaded claw extractor
Extractor (firearms)
An extractor is a part in a firearm that serves to remove brass cases of fired ammunition after the ammunition has been fired. When the gun's action cycles, the extractor lifts or removes the spent brass casing from the firing chamber.-Overview:...

 and the stamped sheet metal
Sheet metal
Sheet metal is simply metal formed into thin and flat pieces. It is one of the fundamental forms used in metalworking, and can be cut and bent into a variety of different shapes. Countless everyday objects are constructed of the material...

 ejector is pinned to the subframe. Post 2002 pistols have a reshaped extractor that serves as a loaded chamber indicator
Loaded chamber indicator
The loaded chamber indicator is a safety device present on many semi-automatic slide handguns intended to alert an operator that there is a round in the chamber...

. When a cartridge is present in the chamber, a tactile metal edge protrudes slightly out immediately behind the ejection port on the right side of the slide.

The striker firing mechanism has a spring-loaded firing pin that is cocked in two stages, powered by the firing pin spring. When the pistol is charged, the firing pin is in the half-cock position. As the trigger is pulled, the striker is then fully cocked. At the end of its travel, the trigger bar is tilted downward by the disconnector, releasing the striker to fire the cartridge. The disconnector resets the trigger bar so that the striker will be captured in half-cock at the end of the firing cycle. This is known as a pre-set trigger mechanism, referred to as the "Safe Action
Safe action
The "safe action" is a firing pin lock system which Glock developed to be used in the vast majority of their pistols. The action is very similar to the quick action used by Walther and other pistol manufacturers....

" trigger by the manufacturer. The disconnector ensures the pistol can only fire semi-automatically.

The factory-standard two-stage trigger has a trigger travel of 12.5 mm (0.492125984251969 in) and is rated at 25 N (5.6 lbf), but by using a modified connector it can be increased to 35 N (7.9 lbf) or lowered to 20 N (4.5 lbf). In response to a request made by American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 law enforcement agencies for a two-stage trigger with increased trigger pull, Glock introduced the NY1 (New York) trigger module, which features a flat spring in a plastic housing that replaces the trigger bar's standard coil spring. This trigger modification is available in two versions: NY1 and NY2 that are rated at 25 N (5.6 lbf) to 40 N (9 lbf) and 32 N (7.2 lbf) to 50 N (11.2 lbf) respectively, which require approximately 20 N (4.5 lbf) to 30 N (6.7 lbf) of force to disengage the safeties and another 10 N (2.2 lbf) to 20 N (4.5 lbf) in the second stage to fire a shot.

The Glock's frame, magazine body and several other components are made from a high-strength nylon
Nylon
Nylon is a generic designation for a family of synthetic polymers known generically as polyamides, first produced on February 28, 1935, by Wallace Carothers at DuPont's research facility at the DuPont Experimental Station...

-based polymer
Polymer
A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds...

 invented by Gaston Glock and called Polymer 2. This plastic was specially formulated to provide increased durability and is more resilient than carbon steel and most steel alloys. Polymer 2 is resistant to shock, caustic liquids and temperature extremes where traditional steel/alloy frames would warp and become brittle. The injection molded
Injection molding
Injection molding is a manufacturing process for producing parts from both thermoplastic and thermosetting plastic materials. Material is fed into a heated barrel, mixed, and forced into a mold cavity where it cools and hardens to the configuration of the cavity...

 frame contains 4 hardened steel guide rails for the slide: two at the rear of the frame, and the remaining pair above and in front of the trigger guard. The trigger guard itself is squared off at the front and checkered. The grip has a non-slip, stippled surface on the sides and both the front and rear straps. The frame houses the locking block, which is an investment casting
Investment casting
Investment casting is an industrial process based on and also called lost-wax casting, one of the oldest known metal-forming techniques. From 5,000 years ago, when beeswax formed the pattern, to today’s high-technology waxes, refractory materials and specialist alloys, the castings allow the...

 that engages a 45° camming surface on the barrel's lower camming lug. It is retained in the frame by a steel axis pin that holds the trigger and slide catch. The trigger housing is held to the frame by means of a plastic pin. A spring-loaded sheet metal pressing serves as the slide catch, which is secured from unintentional manipulation by a raised guard molded into the frame.

The Glock pistol has a relatively low slide profile, which holds the barrel axis close to the shooter's hand and makes the pistol more comfortable to shoot by reducing muzzle rise
Muzzle rise
The interchangeable terms muzzle rise, muzzle flip and muzzle climb refer to the tendency of firearms or pneumatic arms front end to rise up after firing....

 and allows for faster aim recovery in rapid shooting sequence.
The rectangular slide is milled
Milling machine
A milling machine is a machine tool used to machine solid materials. Milling machines are often classed in two basic forms, horizontal and vertical, which refers to the orientation of the main spindle. Both types range in size from small, bench-mounted devices to room-sized machines...

 from a single block of ordnance-grade steel using CNC
Numerical control
Numerical control refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to controlled manually via handwheels or levers, or mechanically automated via cams alone...

 machinery. The barrel and slide are treated with a proprietary nitriding process called Tenifer. The slide and barrel undergo two hardening processes prior to the Tenifer treatment, applied in a 500 °C nitrate bath. The Tenifer finish is between 0.4 mm (0.015748031496063 in) and 0.5 mm (0.0196850393700787 in) in thickness, and is characterized by extreme resistance to wear and corrosion; it penetrates the metal, and treated parts have similar properties even below the surface to a certain depth. The Tenifer process produces a matte gray-colored, non-glare surface with a 64 Rockwell C
Rockwell scale
The Rockwell scale is a hardness scale based on the indentation hardness of a material. The Rockwell test determines the hardness by measuring the depth of penetration of an indenter under a large load compared to the penetration made by a preload. There are different scales, denoted by a single...

 hardness rating (by comparison, an industrial diamond has a rating of 70 HRC) and a 99% resistance to salt water
Seawater
Seawater is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% . This means that every kilogram of seawater has approximately of dissolved salts . The average density of seawater at the ocean surface is 1.025 g/ml...

 corrosion (which meets or exceeds stainless steel
Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....

 specifications), making the Glock particularly suitable for individuals carrying the pistol concealed as the highly chloride-resistant finish allows the pistol to better endure the effects of perspiration. Glock pistols with their Tenifer treatment are more corrosion-resistant than analogous guns on the market with any other type of finish, including Teflon
Polytetrafluoroethylene
Polytetrafluoroethylene is a synthetic fluoropolymer of tetrafluoroethylene that finds numerous applications. PTFE is most well known by the DuPont brand name Teflon....

, bluing
Bluing (steel)
Bluing is a passivation process in which steel is partially protected against rust, and is named after the blue-black appearance of the resulting protective finish. True gun bluing is an electrochemical conversion coating resulting from an oxidizing chemical reaction with iron on the surface...

, hard chrome plating, phosphates and other alloys. After applying the Tenifer process, a black Parkerized decorative surface finish is applied. The underlying Tenifer treatment will remain protecting these parts even if the decorative surface finish were to wear off.

A current production Glock 17 consists of 34 parts. For maintenance, the pistol disassembles into five main groups: the barrel, slide, frame, magazine, and recoil-spring assembly.

The firearm is designed for the NATO-standard 9×19mm Parabellum pistol
Handgun
A handgun is a firearm designed to be held and operated by one hand. This characteristic differentiates handguns as a general class of firearms from long guns such as rifles and shotguns ....

 cartridge
Cartridge (firearms)
A cartridge, also called a round, packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head or at its rim . Electrically...

, but can use high-power (increased pressure) +P and +P+ ammunition with either full-metal-jacket or jacketed hollow-point projectiles.

Barrel

The hammer-forged barrel has a female type polygonal rifling
Polygonal rifling
Polygonal rifling is a type of gun barrel rifling where the traditional lands and grooves are replaced by "hills and valleys" in a rounded polygonal pattern, usually a hexagon or octagon....

 with a right-hand twist. The stabilization of the round is not by conventional rifling
Rifling
Rifling is the process of making helical grooves in the barrel of a gun or firearm, which imparts a spin to a projectile around its long axis...

, using lands and grooves, but rather through a polygonal profile consisting of a series of six interconnected non-circular segments. Each depressed segment within the interior of the barrel is the equivalent of a groove in a conventional barrel. Thus the interior of the barrel consists of six smooth arcs of steel rather than six sharply defined slots. The method by which Glock barrels are rifled is somewhat unusual; instead of using a traditional broaching machine to cut the rifling into the bore, the Glock process involves beating a slowly rotating mandrel
Mandrel
A mandrel is one of the following:* an object used to shape machined work.* a tool component that grips or clamps materials to be machined.* a tool component that can be used to grip other moving tool components.- Variants :...

 through the bore to obtain the hexagonal shape. As a result, the barrel's thickness in the area of each groove is not compromised as with conventional square-cut barrels. This has the advantage of providing a better gas seal around the projectile as the bore has a slightly smaller diameter, which translates into more efficient use of the combustion gases trapped behind the bullet, slightly greater (consistency in) muzzle velocities, increased accuracy and ease of maintenance.

Safety

Glock pistols are designed with three independent safety mechanisms to prevent accidental discharge. The system, designated "Safe Action
Safe action
The "safe action" is a firing pin lock system which Glock developed to be used in the vast majority of their pistols. The action is very similar to the quick action used by Walther and other pistol manufacturers....

" by Glock, consists of an external integrated trigger safety and two automatic internal safeties: a firing pin safety and a drop safety. The external safety is a small inner lever contained in the trigger. Pressing the lever activates the trigger bar and sheet metal connector. The firing pin safety is a solid hardened steel pin that, in the secured state, blocks the firing pin channel (disabling the firing pin in its longitudinal axis). It is pushed upward to release the firing pin for firing only when the trigger is actuated and the safety is pushed up through the backward movement of the trigger bar. The drop safety guides the trigger bar in a ramp that is released only when direct rearward pressure is applied to the trigger. The three safety mechanisms are automatically disengaged one after the other when the trigger is squeezed, and are automatically reactivated when the trigger is released. This passive safety system omits the manipulation of traditional on-off levers, hammers or other external safeties as found in many other handgun designs.

In 2003, Glock announced the Internal Locking System (ILS) safety feature. The ILS is a manually activated lock that is located in the back of the pistol's grip. It is cylindrical in design and, according to Glock, each key is unique. When activated, the lock causes a tab to protrude from the rear of the grip giving both a visual and tactile indication as to whether the lock is engaged or not. When activated, the ILS renders the Glock unfireable as well as making it impossible to disassemble. When disengaged, the ILS adds no further safety mechanisms to the Glock pistol. The ILS is available as an option on most Glock pistols. Glock pistols cannot be retrofitted to accommodate the ILS. The lock must be factory built in Austria and shipped as a special order.

Feeding

The Glock 17 feeds from staggered-column or double stack magazines that have a 17-round capacity (which can be extended to 19 with an optional floor plate) or optional 33-round high capacity magazines. For jurisdictions which restrict magazine capacity to 10 rounds, Glock offers single stack 10-round magazines. The magazines are made of steel and are overmolded with plastic. A steel spring drives a plastic follower. After the last cartridge has been fired, the slide remains open on the slide stop. The slide stop release lever is located on the left side of the frame directly beneath the slide and can be manipulated by the thumb of the shooting hand.

Glock magazines are "one-way" interchangeable between models, meaning that a compact or subcompact pistol will accept magazines designed for the larger pistols chambered for the same round. However, magazines designed for compact and subcompact models will not function in larger pistols because they are not tall enough to reach the slide and magazine release. For example, the subcompact Glock 26 will accept magazines from both the full-size Glock 17 and the compact Glock 19, but the Glock 17 will not accept magazines from the smaller Glock 19 or the Glock 26.

Sights

The Glock 17 has a fixed polymer combat-type sighting arrangement
Iron sight
Iron sights are a system of shaped alignment markers used as a sighting device to assist in the aiming of a device such as a firearm, crossbow, or telescope, and exclude the use of optics as in telescopic sights or reflector sights...

 that consists of a ramped front sight and a notched rear sight with white contrast elements painted on for increased acquisition speed—a white dot on the front post and a rectangular border on the rear notch. The rear sight can be adjusted for windage as it has a degree of lateral movement in the dovetail it is mounted in. Three other factory rear sight configurations are available in addition to the standard 6.5 mm (0.255905511811024 in) height sight: a lower impact 6.1 mm (0.240157480314961 in) sight and two higher impact versions—6.9 mm (0.271653543307087 in) and 7.3 mm (0.28740157480315 in).

Accessories



The Glock pistol accessories available from the factory include several devices for tactical illumination, such as a series of front rail mounted "Glock tactical lights" featuring a white tactical light
Tactical light
A tactical light is a flashlight used in conjunction with a firearm to aid low light target identification, allowing the marksman to simultaneously aim and illuminate the target. Tactical lights can be handheld or mounted to the weapon with the light beam parallel to the bore...

 and an optional visible laser sight. An alternate version of the tactical light utilizing an invisible infrared
Infrared
Infrared light is electromagnetic radiation with a wavelength longer than that of visible light, measured from the nominal edge of visible red light at 0.74 micrometres , and extending conventionally to 300 µm...

 light and laser sight is available, designed to be used with an infrared night vision device. Another lighting accessory is an adapter to mount a flashlight onto the bottom of a magazine.

Polymer holsters in various configurations and matching magazine pouches are available. In addition, Glock produces optional triggers, recoil springs, slide stops, magazine release levers, and underwater
Underwater
Underwater is a term describing the realm below the surface of water where the water exists in a natural feature such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water...

 spring cups.

Magazine floor plates (or "+2 baseplates"), which expand the capacity of the standard magazines by 2 rounds are available for models chambered for the 9×19mm Parabellum, .40 S&W, .357 SIG, and .380 ACP cartridges.

In addition to the standard non-adjustable polymer sight line, three alternative sight lines are offered by Glock. These consist of steel, adjustable and self-illuminating tritium night rear sights and factory steel and self-illuminating tritium contrast pointer steel front sights.

Variants

Following the introduction of the Glock 17, numerous variants and versions have been offered. Variants that differ in caliber, frame, and slide length are identified by different model numbers with the exception of the discontinued Glock 17L. Other changes not dealing with frame and slide length are identified with suffixes, such as "C", which denotes compensated
Muzzle brake
Muzzle brakes and recoil compensators are devices that are fitted to the muzzle of a firearm or cannon to redirect propellant gases with the effect of countering both recoil of the gun and unwanted rising of the barrel during rapid fire...

 models. Minor options such as frame color, sights, and included accessories are identified by a separate model code on the box and do not appear anywhere on the firearm.

Glock pistols come in five form factors, all modeled after the original full-size Glock 17. "Standard" models are designed as full-size duty firearm with a large magazine capacity. "Compact" models are slightly smaller with reduced magazine capacity and lighter weight while maintaining a usable grip length. "Subcompact" models are designed for easier carry being lighter and shorter, and are intended to be used with two fingers on the grip below the trigger guard and do not feature an accessory rail like the larger post generation two Glock models. .45 ACP
.45 ACP
The .45 ACP , also known as the .45 Auto by C.I.P., is a cartridge designed by John Browning in 1904, for use in his prototype Colt semi-automatic .45 pistol and eventually the M1911 pistol adopted by the United States Army in 1911.-Design and history:The U.S...

 and 10mm models are slightly larger than smaller cartridge pistols and are available in the sub-compact models Glock 29 (10mm) and Glock 30 (.45ACP). Glock produces a single-stack "Slimline" .45 ACP pistol, the Glock 36. "Competition" versions have longer barrels and slides, adjustable sights, an extended slide and magazine release.

Beginning in 2007, Glock introduced several "Short Frame" models designated by the suffix "SF". The short frame was originally designed to compete in the now cancelled U.S. military Joint Combat Pistol
Joint Combat Pistol
The Joint Combat Pistol was the name for a former US program for a new military sidearm to replace the M9 Pistol, extant from late 2005 to early 2006. The program was started in 2005 and run by USSOCOM. It is the result of a merger of two earlier programs, the Army's Future Handgun System and the...

 trials for a new .45 ACP pistol to replace the M9 pistol
M9 Pistol
The Beretta M9, formally Pistol, Semiautomatic, 9mm, M9, is a 9×19mm Parabellum pistol of the United States military adopted in 1985. It is essentially a military specification Beretta 92F, later the 92FS....

. Glock's entry featured an optional ambidextrous magazine release and MIL-STD-1913
Picatinny rail
The Picatinny rail or MIL-STD-1913 rail or STANAG 2324 rail or a "Tactical Rail" is a bracket used on some firearms in order to provide a standardized mounting platform. A similar system is the Weaver rail mount.-Description:...

 rail along with a reduction in the size of the backstrap. The Glock 21SF is currently available in three versions: one with a Picatinny rail and ambidextrous magazine release and two with a Universal Glock rail available with or without the ambidextrous magazine release. Current 10 mm and .45 ACP Glock magazines are manufactured with ambidextrous magazine release cutouts. As of January 2009, the Glock 20, 21, 29, and 30 were offered in short-framed variations. These models incorporate a 2.5 mm (0.0984251968503937 in) reduction in trigger reach, and full-sized models feature a 4 mm (0.15748031496063 in) reduction in heel depth. This reduction in heel depth corresponds to an overall reduction in length for those models.

9×19mm Parabellum

  • The Glock 17 is the original 9×19mm Parabellum model, with a standard magazine capacity of 17 rounds. Several modified versions of the Glock 17 have been introduced.
    • The Glock 17C was introduced in 1996 and incorporated slots cut in the barrel and slide to compensate for muzzle rise and recoil. Many other Glock pistols now come with this option, all with a "C" suffix on the slide.
    • The Glock 17L was introduced in 1988 and incorporates a longer slide and extended barrel. Initially, the Glock 17L had three holes in the top of the barrel and a corresponding slot in the slide; however, later production pistols lack the holes in the barrel. The Glock 17L is effectively discontinued and replaced by the Glock 34.
    • The Glock 17MB is a version with ambidextrous magazine catch. This model, along with the other MB variants, was discontinued upon the introduction of the fourth-generation models, which features a reversible magazine catch.


  • The Glock 18 is a selective fire
    Selective fire
    A selective fire firearm has at least one semi–automatic and one automatic mode, which is activated by means of a selector which varies depending on the weapon's design. Some selective fire weapons utilize burst fire mechanisms to limit the maximum or total number of shots fired automatically in...

     variant of the Glock 17, developed at the request of the Austria
    Austria
    Austria , officially the Republic of Austria , is a landlocked country of roughly 8.4 million people in Central Europe. It is bordered by the Czech Republic and Germany to the north, Slovakia and Hungary to the east, Slovenia and Italy to the south, and Switzerland and Liechtenstein to the...

    n counter-terrorist
    Counter-terrorism
    Counter-terrorism is the practices, tactics, techniques, and strategies that governments, militaries, police departments and corporations adopt to prevent or in response to terrorist threats and/or acts, both real and imputed.The tactic of terrorism is available to insurgents and governments...

     unit EKO Cobra
    EKO Cobra
    EKO Cobra is Austria's foremost counter-terrorism special operations tactical unit. It is not part of the Austrian Federal Police but is directly under the control of the Austrian Federal Ministry for the Interior.-History:...

    . This machine pistol
    Machine pistol
    A machine pistol is a handgun-style, often magazine-fed and self-loading firearm, capable of fully automatic or burst fire, and normally chambered for pistol cartridges. The term is a literal translation of Maschinenpistole, the German term for a hand-held automatic weapon...

    -class firearm has a lever-type fire-control selector switch, installed on the serrated portion of the rear left side of the slide. With the selector lever in the bottom position, the pistol will shoot fully automatic
    Automatic firearm
    An automatic firearm is a firearm that loads another round mechanically after the first round has been fired.The term can be used to refer to semi-automatic firearms, which fire one shot per single pull of the trigger , or fully automatic firearms, which will continue to load and fire ammunition...

    , and with the selector lever in the top position, the pistol will fire semi-automatically. The firearm is typically used with an extended 33-round capacity magazine, although other magazines from the Glock 17 will function, with available capacities of 10, 17, or 19 rounds. Early Glock 18 models were ported to reduce muzzle rise
    Muzzle rise
    The interchangeable terms muzzle rise, muzzle flip and muzzle climb refer to the tendency of firearms or pneumatic arms front end to rise up after firing....

     during automatic fire. Another compensated variant was produced, known as the Glock 18C. It has a keyhole opening cut into the forward portion of the slide, similar to the opening on the Glock long-slide models, although the Glock 18 has a standard-length slide. The keyhole opening provides an area to allow the four, progressively larger (from back to front) compensator cuts machined into the barrel to vent the propellant gases upwards, affording more control over the rapid-firing machine pistol. The compensator cuts start about halfway back on the top of the barrel. The two rear cuts are narrower than the two front cuts. The slide is hollowed, or dished-out, in a rectangular pattern between the rear of the ejection port and the rear sight. The rate of fire in fully automatic mode is approximately 1,100–1,200 rounds per minute. Most of the other characteristics are equivalent to the Glock 17, although the slide, frame, and certain fire-control parts of the Glock 18 are not interchangeable with other Glock models.

  • The Glock 19 is effectively a reduced-size Glock 17, called the "Compact" by the manufacturer. It was first produced in 1988, primarily for military and law enforcement. The Glock 19 has a barrel and pistol grip that are shorter by approximately 12 mm (0.47244094488189 in) compared to the Glock 17 and uses a magazine with a standard capacity of 15 rounds. The pistol is compatible with factory magazines from the Glock 17 and Glock 18, with available capacities of 10, 17, 19, and 33 rounds. To preserve the operational reliability of the short recoil system, the mass of the slide remains the same as in the Glock 17 from which it is derived. With the exception of the slide, frame, barrel, locking block, recoil spring, guide rod, and slide lock spring, all of the other components are interchangeable between the models 17 and 19.


  • The Glock 26 is a 9×19mm "subcompact" variant designed for concealed carry and was introduced in 1995, mainly for the civilian market. It features a smaller frame compared to the Glock 19, with a pistol grip that supports only two fingers, a shorter barrel and slide, and a double-stack magazine with a standard capacity of 10 rounds. A factory magazine with a +2 baseplate gives a capacity of 12 rounds. In addition, factory magazines from the Glock 17, Glock 18, and Glock 19, with capacities of 15, 17, 19, and 33 rounds, will function in the Glock 26. More than simply a "shortened" Glock 19, design of the subcompact Glock 26 required extensive rework of the frame, locking block, and spring assembly that features a dual recoil spring.
  • The Glock 34 is a competition version of the Glock 17. It is similar to its predecessor, the now-discontinued Glock 17L, but with a slightly shorter slide and barrel. It was developed and produced in 1998, and compared to the Glock 17, features a 21 mm (0.826771653543307 in) longer barrel and slide. It has an extended magazine release, extended slide stop lever, 20 N (4.5 lbf) trigger pull, and an adjustable rear sight. The top of the slide is milled out, creating a hole designed to reduce front-end muzzle weight to better balance the pistol.

10mm Auto

  • The Glock 20, introduced in 1991, was developed for the then-growing law enforcement and security forces market for the 10mm Auto. The pistol will handle both full-power as well as reduced "FBI" loads that have reduced muzzle velocity. Due to the longer cartridge and higher pressures, the pistol is slightly larger than the Glock 17, having an approximately 2.5 mm (0.0984251968503937 in) greater width and 7 mm (0.275590551181102 in) greater length. Though many small parts interchange with the Glock 17, with a close to 50% parts commonality, the major assemblies are scaled-up and do not interchange. The standard magazine capacity of the Glock 20 is 15 rounds. In 2009, Glock announced they would offer a 152 mm (6 in) barrel as a drop-in option.
  • The Glock 29 is a 10mm Auto equivalent of the subcompact Glock 26 introduced in 1997 along with the Glock 30. The pistol features a 96 mm (3.8 in) barrel and a standard magazine capacity of 10 rounds. Like other subcompact Glock pistols, the Glock 29 will function with the factory magazines from its related full-size model, giving an optional capacity of 15 rounds.

.45 ACP

The barrels of all .45 ACP
.45 ACP
The .45 ACP , also known as the .45 Auto by C.I.P., is a cartridge designed by John Browning in 1904, for use in his prototype Colt semi-automatic .45 pistol and eventually the M1911 pistol adopted by the United States Army in 1911.-Design and history:The U.S...

 Glock pistols feature octagonal polygonal rifling
Polygonal rifling
Polygonal rifling is a type of gun barrel rifling where the traditional lands and grooves are replaced by "hills and valleys" in a rounded polygonal pattern, usually a hexagon or octagon....

 rather than the hexagonal shaped bores used for models in different chamberings. Octagonal rifling provides a better gas seal in relatively large diameter rifled bores, since an octagon resembles a circle
Circle
A circle is a simple shape of Euclidean geometry consisting of those points in a plane that are a given distance from a given point, the centre. The distance between any of the points and the centre is called the radius....

 more closely than a hexagon.
  • The Glock 21 is a .45 ACP version of the Glock 20 designed primarily for the American market. Compared to the Glock 20 chambered in 10mm Auto, the slide of the Glock 21 is lighter to compensate for the lower-energy .45 ACP cartridge. The standard Glock 21 magazine is of the single-position-feed, staggered-column type with a capacity of 13 rounds.
  • The Glock 30 is a .45 ACP version of the subcompact Glock 29, with a standard magazine capacity of 10 rounds. The factory magazine from the Glock 21, with a capacity of 13 rounds, will function in the Glock 30.
  • The Glock 36 is a "slimline" version of the subcompact Glock 30 that features an ultra-compact frame and is chambered for the .45 ACP cartridge. The barrel, slide, and magazine are unique to the model. The Glock 36 is the first Glock pistol to be manufactured with a single-stack magazine, having a standard capacity of 6 rounds. Unlike other subcompact Glock pistols, the Glock 36 cannot use factory magazines from its larger relatives due to its single-stack magazine design.

.40 S&W

  • The Glock 22 is a .40 S&W
    .40 S&W
    The .40 S&W is a rimless pistol cartridge developed jointly by major American firearms manufacturers Winchester and Smith & Wesson. The .40 S&W was developed from the ground up as a law enforcement cartridge designed to duplicate performance of the FBI's reduced velocity 10mm cartridge which could...

     version of the full-size Glock 17 introduced in 1990. The pistol uses a modified slide, frame, and barrel to account for the differences in size and power of the .40 S&W cartridge. The standard magazine capacity is 15 rounds.
  • The Glock 23 is a .40 S&W version of the compact Glock 19. It is dimensionally identical to the Glock 19 but is slightly heavier and uses a modified slide, frame, .40 S&W barrel and a standard magazine capacity of 13 rounds. The factory 15-round magazine from the larger Glock 22 will function in the Glock 23.
  • The Glock 24 is a .40 S&W competition variant of the full-size Glock 22 similar in concept to the target Glock 17L model. Additionally, a compensated ported-barrel version designated the 24C was also produced. The Glock 24 was introduced in 1994 and officially dropped from the company's regular product lineup upon the release of the Glock 34 and 35. However, Glock continues to make small batch runs of the Glock 24 and 24C (as well as the similarly sized Glock 17L) at irregular intervals to satisfy consumer demand built-up for factory-new units, as shown by the release into the marketplace of new production of these models during the spring of 2010 and summer of 2011.
  • The Glock 27 is a .40 S&W version of the subcompact Glock 26, with a standard magazine capacity of 9 rounds. The factory magazines from the larger Glock 22 and 23 will function in the Glock 27, increasing capacity to 13 or 15 rounds. Spacers are available that fit on these larger-capacity magazines themselves; they have the effect of "extending" the magazine well of the pistol, thereby improving the ergonomic feel of the pistol when the longer magazines are inserted.
  • The Glock 35 is a .40 S&W version of the competition Glock 34.


As is typical of pistols chambered in .40 S&W, each of the standard Glock models (22, 23, and 27) may be easily converted to the corresponding .357 SIG
.357 SIG
The .357 SIG pistol cartridge is the product of Swiss-German firearms manufacturer SIG-Sauer, in cooperation with the American ammunition manufacturer Federal Cartridge. While it is based on a .40 S&W case necked down to accept bullets, the .357 SIG brass is slightly longer...

 chambering (Glock 31, 32, and 33 respectively) simply by replacing the barrel. No other parts need to be replaced, as the .40 S&W magazines will feed the .357 SIG round.

.380 ACP

The .380 ACP
.380 ACP
The .380 ACP pistol cartridge is a rimless, straight-walled pistol cartridge developed by firearms designer John Browning. The cartridge headspaces on the mouth of the case. It was introduced in 1908 by Colt, and has been a popular self-defense cartridge ever since...

 models are primarily intended for markets which prohibit civilian ownership of firearms chambered in military calibers such as 9×19mm Parabellum. They are not offered in the United States, due to the characteristics of the gun making it unable to pass import restrictions.

Due to the relatively low bolt thrust
Bolt thrust
Bolt thrust or breech pressure is a term used in internal ballistics and firearms that describes the amount of rearward force exerted by the propellant gases on the bolt or breech of a firearm action or breech when a projectile is fired...

 of the .380 ACP cartridge, these models feature an unlocked breech and operates via straight blowback
Blowback (arms)
Blowback is a system of operation for self-loading firearms that obtains energy from the motion of the cartridge case as it is pushed to the rear by expanding gases created by the ignition of the propellant charge....

 of the slide. This method of operation required modification of the locking surfaces on the barrel as well as a redesign of the former locking block.
  • The Glock 25, introduced in 1995, is a derivative of the Glock 19 which has been adapted to use the .380 ACP cartridge. The standard magazine capacity of the Glock 25 is 15 rounds.
  • The Glock 28 is a subcompact version of the blowback-operated Glock 25, with a standard magazine capacity of 10 rounds. The factory magazine from the Glock 25, with a capacity of 15 rounds, will function in the Glock 28.

.357 SIG

  • The Glock 31 is a .357 SIG
    .357 SIG
    The .357 SIG pistol cartridge is the product of Swiss-German firearms manufacturer SIG-Sauer, in cooperation with the American ammunition manufacturer Federal Cartridge. While it is based on a .40 S&W case necked down to accept bullets, the .357 SIG brass is slightly longer...

     variant of the full-sized Glock 22. The standard magazine capacity of the Glock 31 is 15 rounds.
  • The Glock 32 is a .357 SIG variant of the compact Glock 23. The standard magazine capacity of the Glock 32 is 13 rounds.
  • The Glock 33 is a .357 SIG variant of the subcompact Glock 27. The standard magazine capacity of the Glock 33 is 9 rounds.

.45 GAP

  • The Glock 37 is a .45 GAP
    .45 GAP
    The .45 G.A.P. pistol cartridge was designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP but was shorter to fit in a more compact handgun, and with a stronger case head to reduce the...

     version of the Glock 17. It uses a wider, beveled slide, larger barrel, and different magazine, but is otherwise similar to the Glock 17. The Glock 37 first appeared in 2003. It was designed to offer ballistic performance comparable with the .45 ACP in the frame size of the Glock 17. The concern with the size of the Glock 20/21 has been addressed by the Glock 36, 21SF, and 30SF all of which featured reduced-size frames. The standard magazine capacity of the Glock 37 is 10 rounds.
  • The Glock 38 is a .45 GAP version of the compact Glock 19. The standard magazine capacity of the Glock 38 is 8 rounds.
  • The Glock 39 is a .45 GAP version of the subcompact Glock 26. The standard magazine capacity of the Glock 39 is 6 rounds.

Regional variants

  • The Glock Mariner and Glock Tactical are versions of various Glock pistols sold in the Philippines with an adjustable rear sight, extended slide stop, maritime spring cups and an engraved slide with the words MARINER or TACTICAL.
  • The Glock 17A is a variant produced with a 120 mm (4.7 in) extended barrel that protrudes from the slide visibly. It is intended for the Australia
    Australia
    Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

    n market to conform to local laws regarding barrel length created after the Monash University shooting
    Monash University shooting
    The Monash University shooting refers to a shooting in which a student shot his classmates and teacher, killing two and injuring five. It took place at Monash University in Melbourne, Victoria, Australia on 21 October 2002. The gunman, Huan Yun Xiang, was acquitted of crimes related to the...

     and are supplied with 10-round magazines.
  • The Glock 17S is a variant with an external, frame-mounted, manual safety
    Safety (firearms)
    In firearms, a safety or safety catch is a mechanism used to help prevent the accidental discharge of a firearm, helping to ensure safer handling....

    . Small numbers of this variant were made for the Tasmania
    Tasmania
    Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

    n, Israel
    Israel
    The State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...

    i, Pakistan
    Pakistan
    Pakistan , officially the Islamic Republic of Pakistan is a sovereign state in South Asia. It has a coastline along the Arabian Sea and the Gulf of Oman in the south and is bordered by Afghanistan and Iran in the west, India in the east and China in the far northeast. In the north, Tajikistan...

    i and perhaps several South American security forces. They are stamped "17", not "17S". They resemble, but are distinguishable from, standard Glock 17 pistols that have been fitted with the after-market Cominolli safety.
  • The Glock 17Pro is a version produced exclusively for the Finnish
    Finland
    Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

     market. It has the following alterations from the standard Glock 17: factory tritium
    Tritium
    Tritium is a radioactive isotope of hydrogen. The nucleus of tritium contains one proton and two neutrons, whereas the nucleus of protium contains one proton and no neutrons...

     night sights, an extended, threaded barrel, marine spring cups, modified magazine release, extended slide release (factory standard in newer models), extended +2 magazine baseplates, 15.5 N (3.5 lbf) connector, and factory Glock pouch.
  • The Glock 17DK is a version for Denmark
    Denmark
    Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

    , where handguns must, by law, be at least 210 mm (8.3 in) long. The Glock 17DK has a 122.5 mm (4.8 in) barrel, making the pistol 210 mm (8.3 in) long overall.
  • The Glock 25 SDN (SDN—Secretaria de la Defensa Nacional or "Secretary of National Defense") is a version of the Glock 25 used by Mexican law enforcement
    Law enforcement in Mexico
    Law enforcement in Mexico is divided between federal, state, and municipal entities. There are two federal police forces, 31 state police forces and one estimate suggests over 1,600 municipal police forces...

     with S. D. N. MEXICO DF engraved on the slide.

Training variants

  • The Glock 17T is a training pistol that fires paint or rubber bullets. There are two versions and they are both easily recognizable from their bright blue frames: the Glock 17T 9 mm FX, which fires Simunition FX
    Simunition
    Simunition is a trademark for training ammunition produced by General Dynamics - Ordnance and Tactical Systems Canada Inc. of Québec, Canada. Simunition encompasses many types of training rounds, the best-known being the FX Marking Cartridge....

     cartridges and the Glock 17T 7.8×21 AC, which fires cartridges with paint and rubber bullets powered by replaceable pressurized air cartridges.
  • The Glock 17P and Glock 17R are both training dummies for practicing hand-to-hand combat, loading and unloading of the pistol. The Glock 17P / Glock 17R is identical to a standard Glock 17 except for its red frame, an inert barrel (without a chamber, thus preventing the accidental chambering of a live cartridge) and no firing pin hole in the breech face (preventing someone from using a live barrel with the training slide). Difference between models is that to perform a 'reset' of the trigger, a racking of the slide has to be performed on the 17P but not on the 17R.

Users

Country Organization Model
 Australia New South Wales Department of Corrective Services, New South Wales Police
New South Wales Police
The New South Wales Police Force is the primary law enforcement agency in the State of New South Wales, Australia. It is an agency of the Government of New South Wales within the New South Wales Ministry for Police...

, Queensland Police
Queensland Police
The Queensland Police Service is the law enforcement agency responsible for policing the Australian state of Queensland. In 1990, the Queensland Police Force was officially renamed the Queensland Police Service and the old motto of "Firmness with Courtesy" was changed to "With Honour We Serve"...

, Western Australia Police
Western Australia Police
The Western Australia Police services an area of 2.5 million square kilometres, the world's largest non-federated area of jurisdiction. In 2008, its 7,526 employees included 5,647 police officers.-History:-Early history:...

, and Northern Territory Police
Northern Territory Police
The Northern Territory Police is the police body that has legal jurisdiction over the Northern Territory of Australia. This police service has 1302 gazetted police positions made up of 55 Senior Sergeants, 200 Sergeants, 741 Constables, 159 Auxiliaries, and 84 Aboriginal Community Police Officers...

Glock 22, Glock 23, Glock 27
Glock 17 outfitted with a thumb safety was designed specifically for the Tasmania Police
Tasmania Police
Tasmania Police is the police force of the Australian state of Tasmania. Established in 1899, the force has over 1,200 officers policing Tasmania's population of about half a million people.-Structure:...

 and by the Australian Customs and Border Protection Service
Glock 17
 Austria Austrian Armed Forces Glock 17 (designated Pistole 80)
Austrian Federal Police Glock 17, Glock 19
 Bangladesh Numerous law enforcement agencies and Bangladesh Army
Bangladesh Army
The Bangladesh Army is the land forces branch and the largest of the three uniformed service of the Bangladesh Armed Forces. The primary mission of the Army is to provide necessary forces and capabilities in support of Bangladesh's security and defense strategies including defense of the nation's...

Glock 17, Glock 22, Glock 23
 Belgium Federal and local police forces Glock 17, Glock 19, Glock 26
 Brazil Department of Federal Police (DPF) Glock 17, Glock 19, Glock 26
 Canada Numerous local law enforcement agencies including those of Calgary
Calgary Police Service
Calgary Police Service, formed in 1885, is the municipal police force for the City of Calgary, Alberta.- Organization :Founded in 1885, the current head of the CPS is Chief Rick Hanson...

, Edmonton
Edmonton Police Service
Edmonton Police Service is the municipal police force for the City of Edmonton, Alberta, Canada.-Organization:The current head of the EPS is Roderick Knecht....

, Ottawa
Ottawa Police Service
The Ottawa Police Service serves the City of Ottawa, Ontario, Canada.-History:The OPS roots come from the formation of the "Bytown Association" in 1847. In 1855 Roderick Ross was the first Chief Constable for the newly formed City of Ottawa...

, Saskatoon
Saskatoon Police Service
Saskatoon Police Service is the municipal police force in Saskatoon, Saskatchewan, Canada and holds both municipal and provincial jurisdiction. Police Chief Clive Weighill is the head of the force. The deputy chiefs are Deputy Chief Gary Broste , and Deputy Chief Bernie Pannell...

, South Coast British Columbia Transportation Authority Police Service, and Toronto
Toronto Police Service
The Toronto Police Service , formerly the Metropolitan Toronto Police, is the police service for the city of Toronto, Ontario, Canada. It is the largest municipal police service in Canada and second largest police force in Canada after the Royal Canadian Mounted Police...

 Denmark Slædepatruljen Sirius special forces Glock 20
 Czech Republic Non-standard sidearm issued to personnel on international deployments Glock 17
601. Special Force Group Glock 17
 Ecuador National Police Glock 17
Various special police units such as the GOE and GIR
 Fiji Tactical Response Unit
 Finland Primary service firearm of the police
Law enforcement in Finland
Law enforcement in Finland falls under the jurisdiction of the Finnish Police, a national police agency.The Finnish Police is divided into 24 local departments and three national agencies...

Defence Forces
Finnish Defence Forces
The Finnish Defence Forces are responsible for the defence of Finland. It is a cadre army of 15,000, of which 8,900 are professional soldiers , extended with conscripts and reservists such that the standard readiness strength is 34,700 people in uniform...

Glock 17 (designated 9.00 PIST 2008)
Department of Corrections (Vankeinhoitolaitos)
Border Guard
Finnish Border Guard
The Finnish Border guard is the national security agency responsible for enforcing the security of Finland's borders...

 Early Modern France Certain naval and parachute units of the French Army
French Army
The French Army, officially the Armée de Terre , is the land-based and largest component of the French Armed Forces.As of 2010, the army employs 123,100 regulars, 18,350 part-time reservists and 7,700 Legionnaires. All soldiers are professionals, following the suspension of conscription, voted in...

Glock 17
 Georgia (country) Special forces Glock 17
 Germany GSG 9
GSG 9
The GSG 9 der Bundespolizei , is the elite counter-terrorism and special operations unit of the German Federal Police.-History and name:...

 of the German Federal Police
Glock 17
 Greece EKAM
Special Anti-Terrorist Unit
The Special Suppressive Anti-Terrorist Unit is the Greek counter-terrorism unit of the Hellenic Police. It is the most distinguished part of the Hellenic Police...

Glock 21
 Greenland Siriuspatruljen Glock 20
 Hong Kong Hong Kong Police Force
Hong Kong Police Force
The Hong Kong Police Force is the largest disciplined service under the Security Bureau of Hong Kong. It is the world's second, and Asia's first, police agency to operate with a modern policing system. It was formed on 1 May 1844, with a strength of 32 officers...

Glock 17, 19
 Iceland Icelandic National Police
Víkingasveitin
Víkingasveitin
Víkingasveitin , officially Sérsveit ríkislögreglustjórans , is Iceland's elite counter-terrorism unit, specializing in various types of armed and unarmed infantry combat. It is in many ways modeled on the Norwegian Delta counter-terrorist unit with which it conducts many exercises, both in Norway...

ICRU
 India National Security Guards
National Security Guards
The National Security Guard is a Special Response Unit in India that has primarily been utilized for counter-terrorism activities and was created by the Cabinet Secretariat under the National Security Guard Act of the Indian Parliament in 1986...

Glock 17, Glock 26
Maharashtra
Maharashtra
Maharashtra is a state located in India. It is the second most populous after Uttar Pradesh and third largest state by area in India...

 Force One
Force One
The Force One is an elite commando force, which is a specialised counter terrorism unit to guard the Mumbai metropolitan area, one of the largest metropolitan areas in the world, formed by Government of Maharashtra on the lines of National Security Guards...

Glock 17, Glock 19
Special Protection Group
Special Protection Group
The Special Protection Group is the executive protection agency of the Government of India. It is responsible for the protection of the Prime Minister of India, other top officials, and their immediate families. The force was established in 1985 after the assassination of Indira Gandhi. It is one...

 (replaced with FN Five-seven in 2008)
Glock 17
 Iraq Iraqi security forces
Iraqi security forces
Iraqi security forces is a U.S. Department of Defense term for all security forces of the Federal government of Iraq. They consist of the following organizations:*Ministry of Defence **Iraqi Armed Forces:*** Iraqi Army*** Iraqi Air Force...

 (largest user, purchased 125,163 pistols)
Glock 19
 Israel Israeli Defense Forces Glock 17, Glock 19
 Jordan Royal Guard
 Republic of Kosovo Kosovo Security Force
Kosovo Security Force
The Kosovo Security Force is an emergency response force charged with conducting operations in Kosovo and abroad in the areas of Search and Rescue, Explosive Ordnance Disposal, Firefighting, and Hazardous Material Disposal. It is widely assumed that the KSF will take on an additional defense...

Glock 17
 Latvia Latvian Military Glock 17
 Lithuania Lithuanian Armed Forces
Military of Lithuania
The Lithuanian Armed Forces consist of ~14,500 active personnel . Conscription was ended in September 2008.Lithuania's defence system is based on the concept of "total and unconditional defence" mandated by Lithuania's national Security Strategy...

Glock 17
Lithuanian police
Law enforcement in Lithuania
Law enforcement in Lithuania is the responsibility of a "unified national police force under the jurisdiction of the Interior Ministry." From the Police Department of the Ministry of Internal Affairs, which is led by the Police Commissar General, the police force branches out to the National and...

Glock 17, Glock 19, Glock 26
 Luxembourg Luxembourg Army Glock 17
Unité Spéciale de la Police
Unité Spéciale de la Police
The Unité Spéciale de la Police is a special unit of the Grand Ducal Police that was created in Luxembourg in 1999. It is tasked with responding to especially dangerous situations such as hostage rescue operations, arrests of dangerous individuals, bomb threats, and dignitary protection duties...

of the Grand Ducal Police
Grand Ducal Police
The Grand Ducal Police is the primary law enforcement agency in the Grand Duchy of Luxembourg. The police is under the control of the Minister for the Interior of Luxembourg, although they operate in the name, and under the ultimate control, of the Grand Duke. Day-to-day executive control is...

Glock 17, Glock 26
 Malaysia Malaysian Armed Forces Glock 17, Glock 19, Glock 34
Royal Malaysia Police
Royal Malaysian Custom
Royal Malaysian Custom
The Royal Malaysian Customs / is the government agency responsible for administrating the nation’s indirect tax policy. In other words, KDRM administers seven main and thirty-nine subsidiary laws. Apart from this,KDRM implements eighteen laws for other government agencies...

Malaysian Maritime Enforcement Agency
Malaysian Maritime Enforcement Agency
The Malaysian Maritime Enforcement Agency , the Malaysian Coast Guard version, is the principal government agency tasked with maintaining law and order and coordinating search and rescue operations in the Malaysian Maritime Zone and on the high seas. It is in effect the Coast Guard of Malaysia...

Glock 19
 Mexico Secretaria de Marina
 Kingdom of Montenegro Military of Montenegro
Military of Montenegro
The Military of Montenegro consists of an army, navy and air force. Conscription was abolished in 2006; the military is now a fully professional standing army....

Glock 17
 Netherlands Military of the Netherlands
Military of the Netherlands
The Armed forces of the Netherlands consist of the Army, Navy, and Air Force.The service branches consist of:* Koninklijke Landmacht , Royal Netherlands Army....


The Royal Marechaussee Brigade Speciale Beveiligingsopdrachten
Brigade Speciale Beveiligingsopdrachten
The Brigade Speciale Beveiligingsopdrachten or BSB is a special forces/special operations unit of the Koninklijke Marechaussee, the Dutch gendarmerie corps...

 (Special Protection Assignments Brigade) persoonsbeveiliging (PB), observatie team (OT) and sky marshals sections also use the Glock 26
Glock 17, Glock 26
Dutch police
Law enforcement in the Netherlands
Law enforcement in the Netherlands is provided by 25 regional police forces , the Netherlands Police Agency and the Royal Marechaussee , a gendarmerie.-Organisation:...

 (about 250 Glock 17 pistols in use as a stopgap measure by the Arrestatieteam (Dutch SWAT)
Glock 17
 New Zealand New Zealand Police
New Zealand Police
The New Zealand Police is the national police force of New Zealand, responsible for enforcing criminal law, enhancing public safety, maintaining order and keeping the peace throughout New Zealand...

Glock 17
 Norway Norwegian Armed Forces
Norwegian Armed Forces
The Norwegian Armed Forces numbers about 23,000 personnel, including civilian employees. According to mobilisation plans , the strength during full mobilisation would be approximately 83,000 combatant personnel. Norway has mandatory military service for men and voluntary service for women...

Glock 17 (designated P-80)
 Pakistan Special Service Group of the Pakistan Army
Pakistan Army
The Pakistan Army is the branch of the Pakistani Armed Forces responsible for land-based military operations. The Pakistan Army came into existence after the Partition of India and the resulting independence of Pakistan in 1947. It is currently headed by General Ashfaq Parvez Kayani. The Pakistan...

-
 Philippines Philippine National Police
Philippine National Police
The Philippine National Police is the national police force of the Republic of the Philippines. It is both a national and a local police force in that it does provides all law enforcement services throughout the Philippines...

National Bureau of Investigation
National Intelligence Coordinating Agency
National Intelligence Coordinating Agency
The National Intelligence Coordinating Agency is the primary intelligence gathering and analysis arm of the Philippine government, in charge of carrying out overt, covert, and clandestine intelligence programs...

Philippine Drug Enforcement Agency
Philippine Drug Enforcement Agency
The Philippine Drug Enforcement Agency is the lead anti-drugs law enforcement agency, responsible for preventing, investigating and combating any dangerous drugs, controlled precursors and essential chemicals within the Philippines...

 Poland Polish Armed Forces
Polish Armed Forces
Siły Zbrojne Rzeczypospolitej Polskiej are the national defense forces of Poland...

Glock 17
Polish police
Law enforcement in Poland
Law enforcement in Poland consists of the police force, independent judiciary, prosecutors , and smaller, specialized formations.-Pre 20th Century:...

Glock 19
 Portugal Portuguese Marine Corps
Portuguese Marine Corps
The Portuguese Marine Corps are a special operations force unit in the Portuguese Navy. The corps is specialised in amphibious warfare, coastal reconnaissance, maritime interdiction and boarding operations...

Glock 17
Republican National Guard Glock 19
Public Security Police
Polícia de Segurança Pública
The Polícia de Segurança Pública - PSP is the Portuguese police force that works in large urban areas. Rural towns and areas are under the protection of the Portuguese Republican National Guard...

Glock 19
 Kingdom of Romania Romanian Armed Forces
Romanian Armed Forces
The Land Forces, Air Force and Naval Forces of Romania are collectively known as the Romanian Armed Forces...

Glock 17
 Russia Ministry of Internal Affairs
Russian Ministry of Internal Affairs
The Ministerstvo Vnutrennikh Del is the interior ministry of Russia. Its predecessor was founded in 1802 by Alexander I in Imperial Russia...

 (MVD) special forces,
Glock 17, Glock 19
 Singapore Singapore Prison Service
Singapore Prison Service
The Singapore Prison Service is an agency of the Government of Singapore under the hierarchy of the Ministry of Home Affairs. It runs 14 prisons and drug rehabilitation centres in Singapore. It is situated at Upper Changi Road....

Glock 19
Special Task Squadron (STS) of the Police Coast Guard
Police Coast Guard
The Police Coast Guard is the Marine Police division of the Singapore Police Force which also takes on roles of the coast guard typically handled by the military or as separate organisations in other countries...

Glock 19
 Spain Guardia Civil
Civil Guard (Spain)
The Civil Guard is the Spanish gendarmerie. It has foreign peace-keeping missions and maintains military status and is the equivalent of a federal military-status police force. As a police force, the Guardia Civil is comparable today to the French Gendarmerie, the Italian Carabinieri and the...

's UEI
Unidad Especial de Intervención
The Unidad Especial de Intervención is the emergency response unit of the Spanish Guardia Civil. Its motto is Celeritas et Subtilitas Patrio.The unit was created on February 3, 1982...

Glock 17
 Sweden Swedish Armed Forces
Swedish Armed Forces
The Swedish Armed Forces is a Swedish Government Agency responsible for the operation of the armed forces of the Realm. The primary task of the agency is to train, organize and to deploy military forces, domestically and abroad, while maintaining the long-term ability to defend the Realm in the...

Glock 17 (designated Pistol 88), Glock 19 (designated Pistol 88B)
 Switzerland Military of Switzerland
Military of Switzerland
The Swiss Armed Forces perform the roles of Switzerland's militia and regular army. Under the country's militia system, professional soldiers constitute about 5 percent of military personnel; the rest are male citizen conscripts 19 to 34 years old...

, Kommando Spezialkräfte (KSK) special forces (Swiss Grenadiers
Swiss Grenadiers
The Swiss Grenadiers are an infantry corps of the Swiss Army specialised in rapid offensive operations, intel gathering and operations in urban areas, open fields and other difficult terrains, capable of acting on short notice...

 ARD 10, FSK-17)
Glock 17 Gen4, Glock 26 Gen4
Police (Gendarmerie) Cantonal of Geneva
Geneva
Geneva In the national languages of Switzerland the city is known as Genf , Ginevra and Genevra is the second-most-populous city in Switzerland and is the most populous city of Romandie, the French-speaking part of Switzerland...

Glock 19
 Thailand National police (2,238 pistols) Glock 19
 United Kingdom Specialist Firearms Command
Specialist Firearms Command
Central Operations Specialist Firearms Command is a Central Operations branch within Greater London's Metropolitan Police Service. The Command is responsible for providing a firearms-response capability, assisting the rest of the service, which is normally unarmed...

 of the London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 Metropolitan Police Service
Metropolitan Police Service
The Metropolitan Police Service is the territorial police force responsible for Greater London, excluding the "square mile" of the City of London which is the responsibility of the City of London Police...

Glock 17, Glock 26
Scottish Police Specialist Firearms Units Glock 17
Police Service of Northern Ireland
Police Service of Northern Ireland
The Police Service of Northern Ireland is the police force that serves Northern Ireland. It is the successor to the Royal Ulster Constabulary which, in turn, was the successor to the Royal Irish Constabulary in Northern Ireland....

 (PSNI)
Glock 17
 United States Department of Treasury IRS Criminal Investigation Division
IRS Criminal Investigation Division
Internal Revenue Service, Criminal Investigation investigates potential criminal violations of the U.S. Internal Revenue Code and related financial crimes in a manner intended to foster confidence in the tax system and compliance with the law...

U.S. Marshals Service - Glock 22, Glock 23
Drug Enforcement Administration
Drug Enforcement Administration
The Drug Enforcement Administration is a federal law enforcement agency under the United States Department of Justice, tasked with combating drug smuggling and use within the United States...

Federal Bureau of Investigation
Federal Bureau of Investigation
The Federal Bureau of Investigation is an agency of the United States Department of Justice that serves as both a federal criminal investigative body and an internal intelligence agency . The FBI has investigative jurisdiction over violations of more than 200 categories of federal crime...

Glock 22, Glock 23
New York City Police Department
New York City Police Department
The New York City Police Department , established in 1845, is currently the largest municipal police force in the United States, with primary responsibilities in law enforcement and investigation within the five boroughs of New York City...

Glock 19
Baltimore City Police Department Glock 22
Virginia Beach Police Department Glock 17
Florida Highway Patrol
Florida Highway Patrol
The Division of the Florida Highway Patrol is a division of the Florida Department of Highway Safety and Motor Vehicles and the law enforcement agency charged with ensuring the safety of the highways and roads of the state.-History:...

Glock 37
 Venezuela Venezuelan Armed Forces Glock 17
 Yemen Military of Yemen
Military of Yemen
The armed forces of Yemen include the Yemen Army , Navy , Yemen Air Force . A major reorganization of the armed forces continues. The unified air forces and air defenses are now under one command. The navy has concentration in Aden...

Glock 19


External links

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