List of multiple barrel firearms
Encyclopedia

Pistols

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
COP 357 Derringer
COP 357 Derringer
The COP 357 is a 4 shot Derringer type pistol chambered for the powerful .357 Magnum round. It was designed by Robert Hillberg, based on his earlier work on the Hillberg Insurgency Weapon.It was manufactured by the now defunct COP Inc...

 United States .357 Magnum
.357 Magnum
The .357 S&W Magnum , or simply .357 Magnum, is a revolver cartridge created by Elmer Keith, Phillip B. Sharpe, Colonel D. B. Wesson of firearms manufacturer Smith & Wesson, and Winchester. It is based upon Smith & Wesson's earlier .38 Special cartridge. The .357 Magnum cartridge was introduced in...

The COP 357 was a 4 shot Derringer type pistol chambered for the powerful .357 magnum round. It was designed by Robert Hillberg, based on earlier work on the Hillberg Insurgency Weapon. It was manufactured by the now defunct COP Inc. of Torrance, California (COP stood for Compact Off-Duty Police). The double action weapon is only slightly larger than the typical .25 automatic pistol pistol, which made it a good choice for a defensive weapon or a police backup gun.
Garrucha
Garrucha (pistol)
The Garrucha is a small pistol, similar to a Derringer, common in southern Brazil and Argentina in the early 20th Century. It is usually double-barreled, though with the barrels side-by-side rather than vertical as is common in American derringers, and the bores can be rifled or smooth.In Brazil,...

 Brazil n/a
The Garrucha is a small pistol, similar to a Derringer, common in southern Brazil and Argentina in the early 20th Century. It is usually double-barreled, though with the barrels side-by-side rather than vertical as is common in American derringers, and the bores can be rifled or smooth. In Brazil, the most popular chamberings were for the .320 and .380 centrefire cartridges, similar to the .32 S&W and .38 S&W in appearance, but conical. They were also chambered for the .22 Short, .22 Long, .22 Long Rifle, and the .32, 8mm, and 9mm Flobert cartridges, among others.
Howdah pistol
Howdah pistol
The howdah pistol was a large-calibre handgun, often with two or four barrels, used in India and Africa in the mid-to-late-nineteenth and early-twentieth centuries, during the period of British Colonial rule. It was typically intended for defence against tigers, lions, and other dangerous animals...

19th Century  United Kingdom n/a British Empire
The Howdah pistol was a large-calibre handgun, often with two or four barrels, used in India and Africa in the mid-to-late-nineteenth and early-twentieth centuries, during the period of British Colonial rule. It was typically intended for defence against tigers, lions, and other dangerous animals that might be encountered in remote areas. Multi-barreled designs were initially favoured for Howdah pistols because they offered faster reloading than was possible with contemporary revolvers, which had to be loaded and unloaded through a gate in the side of the frame.
Lancaster Pistol
Lancaster pistol
The Lancaster Pistol was a multi-barrelled handgun produced in England in the mid-late 19th century, chambered in a variety of centrefire pistol calibres—chiefly .380", .450 Adams, .455 Webley, and .577 calibre....

1884  United Kingdom .455 Webley
.455 Webley
.455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI.The .455 cartridge was a service revolver cartridge, featuring a rimmed cartridge firing a .45 bullet at the relatively low velocity of 650 ft/s...

British Empire
The Lancaster Pistol was a multi-barrelled (either 2 or 4 barrels) handgun produced in England in the mid-late 19th century, chambered in a variety of centrefire pistol calibres—chiefly .380", .450 Adams, .455 Webley, and .577 calibre. It was a modernised version of the pepper-box pistol popular in the early-mid 19th century. Unlike these earlier guns, which had percussion cap ignition the Lancaster was chambered for the more modern brass cartridges. It had a faster rate of fire than the standard-issue Adams revolver and was often fitted with a Tranter-type trigger to overcome the heavy pull of the revolving striker.
Mossberg Brownie
Mossberg Brownie
The Mossberg Brownie was a four-barreled, .22 Long Rifle pistol, similar to a derringer or pepperbox, produced by O.F. Mossberg & Sons from 1920-1932. The Brownie was based on an earlier pistol patented and licensed to the Shattuck Company by Oscar Mossberg....

1920-1932  United States .22LR n/a
The Mossberg Brownie was a four-barreled, .22 Long Rifle pistol, similar to a derringer or pepperbox, produced by O.F. Mossberg & Sons from 1920-1932. The Brownie was based on an earlier pistol patented and licensed to the Shattuck Company by Oscar Mossberg.
Baylè 1879 wallet / palm pistol
Baylè 1879 wallet / palm pistol
The Baylè Pistol was a 6 barrel pistol of French origin introduced in 1879. The barrels were placed vertical and firing was actuated with a double-action trigger mechanism firing each round at a time.-References:...

1879  Early Modern France 12 gauge
Gauge (bore diameter)
The gauge of a firearm is a unit of measurement used to express the diameter of the barrel. Gauge is determined from the weight of a solid sphere of lead that will fit the bore of the firearm, and is expressed as the multiplicative inverse of the sphere's weight as a fraction of a pound . Thus...

n/a
The Baylè Pistol was a 6 barrel pistol of French origin introduced in 1879. The barrels were placed vertical and firing was actuated with a double-action trigger mechanism firing each round at a time.

Revolvers

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Bajōzutsu revolver
Bajōzutsu revolver
The revolver was a Japanese 3 shot pistol of the Edo period.-References:*...

 Japan n/a
The bajōzutsu (馬上筒) revolver was a Japanese 3 shot pistol of the Edo period and possibly invented at the same time, before the Americans and Europeans were in search of multi shot firearms.
Henrion, Dassy & Heuschen Revolver
Henrion, Dassy & Heuschen Revolver
The Henrion, Dassy & Heuschen Revolver was a 20 shot revolver manufactured by the French firm of Henrion, Dassy & Heuschen from 1911 to 1928. It was marketed under a variety of names that were supposed to denote power and masculinity...

1911  Belgium .32 S&W
.32 S&W
The .32 S&W cartridge was introduced in 1878 for the Smith & Wesson model 1½ revolver. It was originally designed as a black powder cartridge.The .32 S&W was offered to the public as a light, defense cartridge, for "card table" distances....

n/a
The Henrion, Dassy & Heuschen Revolver (HDH Revolver) was a 20 shot revolver manufactured by the French firm of Henrion, Dassy & Heuschen (HDH) from 1911 to 1928. It was marketed under a variety of names that were supposed to denote power and manly coolness. Names such as "Wild West", "Terrible", "Redoubtable", or even "Machine-gun HDH" certainly have a get-down-to-business ring to them.
LeMat revolver
LeMat Revolver
The LeMat revolver was a .42 or .36 caliber cap & ball black powder revolver invented by Dr. Jean Alexandre LeMat of New Orleans, which featured a rather unusual secondary 16 gauge smoothbore barrel capable of firing buckshot, and saw service with the armed forces of the Confederate States of...

1861  Early Modern France
 Confederate States of America
.42
16ga
n/a
The LeMat revolver was a .42 or .36 caliber cap & ball black powder revolver invented by Dr. Jean Alexandre LeMat of New Orleans, which featured a rather unusual secondary 16 gauge smoothbore barrel capable of firing buckshot, and saw service with the armed forces of the Confederate States of America during the American Civil War of 1861–1865.
Pepperbox 19th Century (Noted Examples) Various Various n/a
The pepper-box revolver or simply pepperbox (also "pepper-pot", from its resemblance to the household pepper grinder) is a multiple-barrel repeating firearm that has three or more barrels grouped around a central axis. It mostly appears in the form of a multi-shot handheld firearm. Pepperboxes exist in all ammunition systems: matchlock, wheellock, flintlock, percussion, pinfire, rimfire and centerfire.
Cobray Pocket Pal
Cobray Pocket Pal
The Cobray Pocket Pal was a unique revolver that featured the same break-action, layout, and hammer system of the Mossberg Brownie. Cobray combined this with a unique twin-barrel, dual-caliber system. Two "zig-zag" revolving cylinders were provided, one in .22 LR and the other in .380 ACP...

19??  United States .22LR
.380 ACP
n/a
The Cobray Pocket Pal was a unique revolver that featured the same break-action, layout, and hammer system of the Mossberg Brownie. Cobray combined this with a unique twin-barrel, dual-caliber system. Two "zig-zag" revolving cylinders were provided, one in .22 LR and the other in .380 ACP. The same hammer fired either the .22 caliber in the bottom barrel or the .380 in the top depending on which cylinder was installed.

Shotguns

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Double-barreled shotgun
Double-barreled shotgun
A double-barreled shotgun is a shotgun or combination gun with two parallel barrels, allowing two shots to be fired in quick succession.-Construction:...

Various 12ga
A double-barreled shotgun is a shotgun or Combination gun with two parallel barrels, allowing two shots to be fired in quick succession.
FAMARS Rombo
FAMARS Rombo
The Rombo is a model of four-barrelled break-action shotgun made by Famars in Italy. The shotgun is produced in 28 gauge and .410 bore, and was primarily designed for small-game hunting. It is notable for having a complex action, which allows all four barrels to be fired consecutively and...

 Italy 28 Gauge
.410 bore
The FAMARS Rombo is a model of four-barrelled break-action shotgun made by the FAMARS factory in Italy. The shotgun is produced in 28 gauge and .410 bore, and was primarily designed for small-game hunting. It is notable for having a complex action, which allows all four barrels to be fired consecutively and sequentially using just the one trigger.
Leopard 12  Russia 12 Gauge n/a
The Leopard 12 is a 4 barrel shotgun
M30 Luftwaffe drilling
M30 Luftwaffe drilling
The M30 Luftwaffe drilling was a survival weapon issued to Luftwaffe pilots during World War II. It was intended to be used in the event that a pilot was shot down, for defense and for hunting game to stay alive until rescue....

 Nazi Germany n/a Luftwaffe
The M30 Luftwaffe drilling was a survival weapon issued to Luftwaffe pilots during World War II. It was intended to be used in the event that a pilot was shot down, for defense and for hunting game to stay alive until rescue. For maximum versatility the M30 featured two 12 gauge shotgun barrels, and a 9.3x74mmR rifle barrel. They were manufactured by the German firm JP Sauer.
TP-82
TP-82
The TP-82 pistol is a triple-barreled Soviet firearm that was carried by cosmonauts on space missions.It is intended as a survival aid to be used after landings and before recovery in the Siberian wilderness. The upper two smoothbore barrels use 12.5×70 mm ammunition, or approximately 40...

 Soviet Union n/a
The TP-82 is a triple-barreled Soviet firearm that was carried by cosmonauts on space missions. It is intended as a survival aid to be used after landings and before recovery in the Siberian wilderness. The upper two smoothbore barrels use 12.5x70 mm ammunition, or approximately 40 gauge (see gauge) , and the lower rifled barrel uses 5.45 mm caliber ammunition. The pistol can be used for hunting, to defend against predators and for visible and audible distress signals. The detachable buttstock is also a machete that comes with a canvas sheath.
Colt Defender Mark I
Colt Defender Mark I
Colt Defender Mark I was an American 8-barrel shotgun intended for law enforcement or military use, completed in 1967.The shotgun had a semi-automatic like fire without the complexity of being a semi-automatic weapon. Each barrel was chambered for the 20 gauge 3 inch magnum shell...

1967  United States 12ga n/a
Colt Defender Mark I was an 8-barrel shotgun intended for law enforcement or military use, completed in 1967. The shotgun had a semi-automatic like fire without the complexity of being a semi-automatic weapon. Each barrel was chambered for the 20 gauge 3 inch magnum shell. The barrels were joined together around a central axis with a pistol grip double action revolver mechanism and a second forward pistol grip for instinctive shooting. The shotgun was extremely simple to operate and very robust.
Winchester Liberator
Winchester Liberator
The Winchester Liberator is a 16-gauge, four-barrelled shotgun, similar to a scaled up four-shot double action derringer. It was an implementation of the Hillberg Insurgency Weapon design...

 United States 12ga n/a
The Winchester Liberator is a 16-gauge, four-barrelled shotgun, similar to a scaled up four-shot double action derringer. It was an implementation of the Hillberg Insurgency Weapon design. Robert Hillberg, the designer, envisioned a weapon that was cheap to manufacture, easy to use, and provided a significant chance of being effective in the hands of someone who had never handled a firearm before. Pistols and submachine guns were eliminated from consideration due to the training required to use them effectively. The shotgun was chosen because it provided a very high volume of fire with a high hit probability. Both Winchester and Colt built prototypes, although the Colt eight-shot design came late in the war and was adapted for the civilian law enforcement market. No known samples were ever produced for military use.

Non-lethal weapons

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Flash-ball
Flash-ball
Flash-Ball is a registered trademark for a nominally non-lethal hand-held weapon used mainly by law enforcement officers in riot situations as an alternative to lethal firearms, baton rounds, and plastic bullets. It was developed by French hunting firearms manufacturer Verney-Carron. The weapon...

 Early Modern France 44mm France
The Flash-Ball is a hand-held weapon which is mainly used by law enforcement officers in riot situations as an alternative to lethal firearms, baton rounds, and plastic bullets. It was developed by French hunting firearms manufacturer Verney-Carron who owns the brand name "Flash-Ball" which should only be used to refer to this specific caliber 44/83 weapon of which two versions are currently available. The super-pro version features vertically stacked barrels and is made from metal alloys, while the compact version is made from lighter composite materials with the twin barrels side by side. Both versions of the weapon can be used to fire a variety of ammunition although a soft 44 mm rubber ball is the most common.
PB-4M  Russia 15.5mm n/a
The PB-4 "Osa" ("Оса", rus. "Wasp") is a family of Russian non-lethal pistols that can be also used as flare launcher or flashbang gun. The pistol is designed and manufactured by state owned organizations Federal center for research and manufacturing and The Institute for science and research in the applied chemistry. The last one is one of the most important military contractors in Russia, first developer of the gun.

Underwater firearms

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
H&K P11  Germany n/a Germany
The HK P11 is a Heckler & Koch pistol designed as an underwater firearm. Since ordinary-shaped rounds are inaccurate and have a very short range when used underwater, this pistol fires steel darts about 10 cm long. It has five barrels, each of which is loaded with a cartridge, giving the gun a pepper-box appearance, and it is electrically ignited from a battery pack in the pistol grip. After firing all five cartridges, the barrel unit must be sent back to its manufacturer for reloading. In the past, Heckler & Koch has denied knowledge of its existence.
Mk 1 Underwater Defense Gun
Mk 1 Underwater Defense Gun
The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War...

 United States n/a US
The M1 Underwater Defense Gun, also called the Underwater Defense Gun Mark 1 Mod 0, is an underwater firearm developed by the United States during the Cold War. Like other underwater firearms, it fires a special 4.25 inch metal dart as its projectile.
SPP-1
SPP-1 Underwater Pistol
The SPP-1 Underwater Pistol was made in the USSR for use underwater by Soviet frogmen as an underwater firearm. It was developed in the late 1960s and accepted for use in 1971. Underwater, ordinary-shaped bullets are inaccurate and very short-range...

 Soviet Union n/a Soviet Union
Russia
The 4.5 mm SPP-1 Underwater Pistol was made in the USSR for use underwater by Soviet frogmen as an underwater firearm. It was developed in the late 1960s and accepted for use in 1971. Underwater, ordinary-shaped bullets are inaccurate and very short-range. As a result, this pistol fires a round-based 4.5 mm caliber steel dart about 115 mm long (about 4.5 inches), weighing 12.8 g, which has longer range and more penetrating power than speargun spears. The complete cartridge is 145 mm long (about 5.7 inches) and weighs 17.5 g.

Flare launchers

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Krieghoff Model L
Krieghoff Model L
The Krieghoff Model L was a double-barrel Flare gun of German origin. It was manufactured by Krieghoff Waffenfabrik and used by the Luftwaffe....

 Nazi Germany n/a Luftwaffe
The Krieghoff Model L was a double-barrel Flare gun of German origin. It was manufactured by Krieghoff Waffenfabrik and used by the Luftwaffe.
Nambu Type 90
Nambu Type 90
The Nambu Type 90 was a flare gun of Japanese origin and manufactured by Nambu. It was used by the Imperial Japanese Navy and came with two or three barrels....

 Japan Imperial Japanese Navy
The Nambu Type 90 was a Flare Pistol of Japanese Origin and manufactured by Nambu. It was used by the Imperial Japanese Navy and came with two or three barrels.

Grenade launchers

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Redback  Australia n/a n/a
The Redback weapon system is being developed under a teaming agreement with Electro-Optic Systems (EOS), Metal Storm (MS) and Singapore Technologies Kinetics (ST Kinetics). The Redback is a 4-barrel, 16-shot remotely operated weapon system that can automatically track targets and slew at speeds of up to 700 degrees/second (almost 2 complete revolutions per second). The primary role of Redback is as a lightweight vehicle or fixed asset mounted 40 mm weapon system.

Rifles

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Nock gun
Nock gun
The Nock gun was a seven-barrelled flintlock smoothbore firearm used by the Royal Navy during the early stages of the Napoleonic Wars. A volley gun originally designed for ship-to-ship fighting, its use was limited and eventually discontinued because the powerful recoil limited its use.Since then,...

1779  United Kingdom n/a Royal Navy
The Nock gun was invented by British engineer James Wilson in 1779, and named for Nock, the London-based armaments manufacturer contracted to build the gun. It was intended to be fired from the rigging of Royal Navy warships onto the deck in the event that the ship was boarded by enemy sailors. Theoretically, the simultaneous discharge of seven barrels would have devastating effect on the tightly packed groups of enemy sailors.
Double rifle
Double rifle
A double-barreled rifle or double rifle is a type of sporting rifle with two barrels instead of one, available in eitherside-by-side or over-and-under barrel configurations. Double rifles are one of the family of combination guns...

Various Various
A double-barreled rifle or double rifle is a type of sporting rifle with two barrels instead of one, available in either side-by-side or the more accurate over-and-under barrel configurations. Double rifles are one of the family of combination guns. In general, double rifles are much more expensive than the much more common magazine-repeater rifles, and, owing to the large-calibre cartridges commonly used, have to withstand very high levels of recoil. Because of their ability to fire two quick shots, double rifles are often used for the hunting of dangerous game in Africa. While today double rifles are typically associated with African big game hunting, double rifles saw their most extensive use during the colonial period in India.
Springfield Armoury SALVO 1957  United States 5.56x45mm NATO n/a
The Springfield Armoury SALVO was an entrant of Project SALVO. It was a 3 barrel salvo rifle fed by a feeding rotor.
Steinkamp SW1
Steinkamp SW1
The Steinkamp SW1 is an over/under double rifle of german origin. The weapon uses a lever action handguard to cock the weapon and a lower trigger to eject the spent brass.-See also:* Multiple Barrel Firearm* Double-barreled shotgun...

2010  Germany n/a n/a
The Steinkamp SW1 is an over/under double rifle of German origin. The weapon uses a lever action handguard to cock the weapon and a lower trigger to eject the spent brass.
VFIW
Volley Firing Infantry Weapon
The Volley Firing Infantry Weapon was a rifle concept of French origin designed by Pierre Jampy. The weapon was gas operated, and was fed by clips holding 3 rounds. The VFIW had the capability of firing on both semi and full automatic and adjustable spread....

1970-73  Early Modern France 5.56x45mm NATO n/a
The Volley Firing Infantry Weapon (VFIW) was a rifle concept with the capability of firing semi/full automatic and adjustable spread. It was magazine fed but used special clips holding 3 rounds each.

Assault rifles

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
80.002
80.002
The 80.002 is a combined Assault Rifle/Grenade Launcher based on the AK platform that pre-dated the similar OICW. In developing this set of designers participated V. Minaev, VI Chelikin, GA Jan. The main difference from the Kalashnikov is the presence of weapons of two adjacent shafts 5.45 mm and...

1974  Nepal 5.45x39mm M74
12.7mm Grenade
n/a
The 80.002 is a combined Assault Rifle/Grenade Launcher based on the AK platform that predated the similar OICW. In developing this set of designers participated V. Minaev, VI Chelikin, GA Jan. The main difference from the Kalashnikov is the presence of weapons of two adjacent shafts 5.45 mm and 12.7 mm respectively.
AO-63
AO-63 assault rifle
The AO-63 is a Soviet two-barrel assault rifle, capable of fully automatic fire, chambered for the 5.45 x 39 mm round. It was designed by S. G. Simonov and P. A. Tkachev, and manufactured by TsNIITochMash....

1986  Soviet Union
5.45x39mm M74 Spetsnaz
The AO-63 was intended as a more accurate alternative to the standard issue AK-74 with capabilities firing from 850 to a theoretical 6,000RPM when the two round burst selected making it effective against body armour. It was used during the Abakan trials with the AN-94 being the winner.
TKB-059
TKB-059
TKB-059 was a Soviet three-barrel bullpup assault rifle, capable of fully automatic fire, chambered for the 7.62 x 39 mm round and manufactured by the Tula State Arsenal in 1966. It was based on the Pribor ZB assault rifle . Both weapons were developed by the small arms designer G. A...

1966  Soviet Union 7.62x39mm n/a
The TKB-059 assault rifle was a bullpup weapon with rapid burst capabilities. It had a unique recoil operation with the spent brass ejecting downwards behind the magazine area enabling the weapon to be used ambidextrously. The TKB-059 recoil operation was used as the basis of the AN-94.
TVGK  Ukraine 4.92x34mm
20mm
n/a
The TVGK is a combined Assault rifle/ Airburst grenade launcher concept from Ukraine. It is of Bullpup configuration and is developed by KB Shar.
K11 2008  South Korea 5.56x45mm NATO
20mm
South Korea
United Arab Emirates
The K11 is an OICW chambered to fire 5.56mm rounds, as well as 20mm air-burst shells from its overbarrel launcher. The weapon was adopted by the Republic of Korea Armed Forces in 2008 and was distributed within the Republic of Korea Army during 2010, making it the world's first army to use an airburst rifle as standard issue in the military.

Battle rifles

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
ITM Model 3
ITM Model 3
The ITM Model 3 is a combined battle rifle and submachine gun developed by ITM Tool & Die of Ohio for urban warfare. The top section is an AK derivative rifle with the lower section a 9mm submachine gun....

1989  United States 7.62x51mm NATO
9x19mm Parabellum
n/a
The ITM Model 3 is a combined battle rifle and submachine gun developed by ITM Tool & Die of Ohio for urban warfare. The top section is an AK derivative rifle with the lower section a 9mm submachine gun. The Model-3 chambers 7.62x39mm in the 16" top barrel and 9mm Parabellum in the 7.8" lower barrel. This too has a single trigger with a selector switch. Like the Model-4 also cycles at 800 rounds/minute. The Model-3 unloaded weighs 4.4kg.
Olin/Winchester FAL
Olin/Winchester Salvo Rifle
The Olin/Winchester Salvo Rifle is an experimental double-barreled 5.56mm automatic rifle created for the U.S. Army's Project SALVO in the 1950s. Developed in hopes of increasing the hit probability of soldiers in combat, the Salvo Rifle was designed by Stefan K. Janson, who had previously created...

1957  United States 5.56mm T65 Duplex n/a
The Olin/Winchester FAL is an FN FAL battle rifle chambered in the experimental 5.56mm T65 Duplex Round used in Project SALVO to fire flechette projectiles. It was designed by Stefan K. Janson who previously worked on the abandoned Enfield EM2 which actually lost out to the L1A1 SLR in British Service during the 1950s. An example of this weapon can be seen at the Springfield Armoury Museum.

Submachine Guns

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Gordon Close-Support Weapon System
Gordon Close-Support Weapon System
The Gordon Close-Support Weapon System was an exotic firearm project of Australian origin.A very unusual weapon system was proposed at one time Australian Duncan Gordon...

1972  Australia 12ga

9x19mm Parabellum
5.56x45mm NATO
7.62x51mm NATO
n/a
The Gordon Close-Support Weapon System (Gordon CSWS) was an exotic firearm project of Australian origin. A very unusual weapon system was proposed at one time Australian Duncan Gordon. It was assumed that the basis of this family of automatic weapons constitute a belt fed machine gun, automatic shotgun with box magazine and the double-barreled submachine gun with overhead inserted magazines (A la Villar-Perosa SMG) is very unusual configuration.
ITM Model 4  United States 9x19mm Parabellum n/a
Villar-Perosa aircraft submachine gun
Villar-Perosa aircraft submachine gun
The Villar-Perosa aircraft submachine gun was an Italian double barreled light machine gun designed by Bethel Abiel Revelli, a Major in the Italian Army in 1914. The weapon fired pistol calibre 9 mm Glisenti ammunition, a reduced-power version of the famous 9 mm Para, at the extremely high rate of...

1914  Italy 9x21mm Largo Austria Hungary
Italy
The Villar-Perosa aircraft submachine gun was an Italian double barreled light machine gun designed by Bethel Abiel Revelli, a Major in the Italian Army in 1914. The weapon fired pistol calibre 9 mm Glisenti ammunition, a reduced-power version of the famous 9 mm Para, at the extremely high rate of fire of 3,000 rounds per minute, or 1,500 rounds per minute per barrel. It was arguably the first submachine gun though it was highly impractical due to its design as a stationary machine gun.

Machine guns

Name/
designation
Year of
intro
Country of
origin
Primary
cartridge
Major users
Bira gun
Bira gun
The Bira gun was a .577/450 Martini-Henry calibre machine gun designed and manufactured in Nepal during the latter part of the 19th Century. It was a development of, and based upon, the American Gardner gun. It was double barreled, but fed through an overhead drum magazine similar to the later...

1896-97  Nepal .577/.450 Martini-Henry British Empire
The Bira gun was a .577/450 Martini-Henry calibre machine gun designed and manufactured in Nepal during the latter part of the 19th Century. It was a development of, and based upon, the American Gardner gun. It was double barreled, but fed through an overhead drum magazine similar to the later Lewis gun. The Bira gun was never deployed operationally.
Fokker-Leimberger
Fokker-Leimberger
The Fokker-Leimberger was an early example of an externally powered machine gun of Imperial German origin that predated the M134 Minigun. It had 12 barrels and could fire at a rate of 7,200 rounds per minute but it suffered from jamming due to the poor quality of German war time production...

1916  German Empire 7.92x57mm Mauser Germany
The Fokker-Leimberger was an early example of an externally powered machine gun of Imperial German origin that predated the M134 Minigun. It had 12 barrels and could fire over 7200RPM it had the spent brass ruptured. The weapon was experimented with during World War I until the armistice.
Gast gun
Gast gun
The Gast Gun was a German twin barreled machine gun developed by Karl Gast of Vorwerk und Companie of Barmen, and used during the First World War...

1916  German Empire 7.92x57mm Mauser
13mm
Germany
The Gast Gun was a German twin barreled machine gun developed by Karl Gast of Vorwerk und Companie of Barmen, and used during the First World War. It was notable for its high rate of fire of 1,600 rounds per minute and a unique mechanism that is used today in the Gryazev-Shipunov GSh-23L series of Russian aircraft cannon.
GShG-7.62
GShG-7.62 machine gun
The Shipunov GShG-7.62 is a four-barreled rotary machine gun, similar to firearms such as the M134 "Minigun". It is a gas operated, self-powered weapon which is in contrast with most other rotary guns , and has been used only in gun pods and flexible mounts on Kamov Ka-29 prototypes.-See...

1960s  Soviet Union 7.62x54mmR Russia
Warsaw Pact
Various
The Shipunov GShG-7.62 is a four-barreled rotary machine gun, similar to firearms such as the M134 "Minigun". It has been used only in gun pods and flexible mounts on Kamov Ka-29 prototypes.
Gardner gun
Gardner gun
The Gardner gun was an early type of mechanical machine gun. It had one or two barrels, was fed from a vertical magazine or hopper and was operated by a crank. When the crank was turned, a feed arm positioned a cartridge in the breech, the bolt closed and the weapon fired...

1874  United States Various Various
The Gardner gun was an early type of mechanical machine gun. It had one or two barrels, was fed from a vertical magazine or hopper and was operated by a crank. When the crank was turned, a feed arm positioned a cartridge in the breech, the bolt closed and the weapon fired. Turning the crank further opened the breechblock and extracted the spent round.
Gatling gun
Gatling gun
The Gatling gun is one of the best known early rapid-fire weapons and a forerunner of the modern machine gun. It is well known for its use by the Union forces during the American Civil War in the 1860s, which was the first time it was employed in combat...

1865  United States Various Various
The Gatling gun was a hand-cranked, rotary barrel weapon capable of rapid fire. It formed the basis of many externally operated derivatives used today.
Minigun
Minigun
The Minigun is a 7.62 mm, multi-barrel heavy machine gun with a high rate of fire , employing Gatling-style rotating barrels with an external power source...

1963  United States 7.62x51mm NATO Various
The Minigun is a 7.62 mm, multi-barrel machine gun with a high rate of fire (2,000 to 6,000 rounds per minute), employing Gatling-style rotating barrels with an external power source. In popular culture, the term "Minigun" has come to refer to any externally-powered Gatling gun of rifle caliber, though the term is sometimes used to refer to guns of similar rates of fire and configuration, regardless of power source and caliber. Specifically, minigun refers to a single weapon, originally produced by General Electric. The "Mini" of the name is in comparison to designs that use a similar firing mechanism but larger shells, such as General Electric's earlier 20 mm M61 Vulcan.
Mitrailleuse
Mitrailleuse
Mitrailleuse is the French word used to describe all rapid-firing weapons of rifle caliber. Therefore the word mitrailleuse, when used in the French language, applies to all machine guns including modern full automatic weapons. However in the English language the word mitrailleuse applies to...

1851  Early Modern France n/a France
Montigny mitrailleuse
Montigny mitrailleuse
The Montigny mitrailleuse was an early type of crank-operated machine-gun developed by the Belgian gun works of Joseph Montigny between 1859 and 1870...

1863  Belgium n/a Belgium
Qing Empire
The Montigny mitrailleuse was an early type of crank-operated machine-gun developed by the Belgian gun works of Joseph Montigny between 1859 and 1870. It was an improved version of the "Mitrailleuse", (English: Grapeshot shooter) invented by Belgian Captain Fafschamps in 1851 which was a fixed 50-barrelled volley gun. It was designed to defend narrow defensive positions such as the moats of fortresses. The Belgian army initially purchased Fafschamps volley guns. Only later did they acquire Montigny mitrailleuses. Joseph Montigny also promoted and sold the weapon for offensive field use by placing the weapon on an artillery carriage.
Nordenfelt gun
Nordenfelt gun
The Nordenfelt Gun was a multiple barrel machine gun that had a row of up to twelve barrels. It was fired by pulling a lever back and forth. It was produced in a number of different calibres from rifle up to 25 mm...

1873  Sweden Various Various
The Nordenfelt Gun was a multiple barrel machine gun that had a row of up to twelve barrels. It was fired by pulling a lever back and forth. It was produced in a number of different calibres from rifle up to 25 mm (1 inch). Larger calibres were also used, but for these calibres the design simply permitted rapid manual loading rather than true automatic fire.
Silin gun 1937  Nepal 7.62x54mmR n/a
The Silin Gun was a gast-derived, belt-fed machine gun capable of firing up to 6,000RPM.
Slostin gun
Slostin machine gun
The Slostin was a Soviet-made self-powered Gatling type machine gun, developed directly after World War II but never put into production. It was gas-operated, with stationary breech and movable barrels, intended for 7.62x54mmR ammunition, and it was mounted on PM M1910 wheeled tripods. Each barrel...

1944-46  Soviet Union 7.62x54mmR n/a
The Slostin was a self-powered Gatling Gun of Russian origin and was chambered in 7.62x54mmR, mounted on PM M1910 wheeled tripods. It used a gas-operation, with stationary breech and movable barrels. each barrel has its own gas cylinders, with piston connected to the next barrel. Upon firing one barrel, next one was forced forward, and thus caused the whole barrel block to rotate through the roller, attached to the mentioned barrel running through cam track in outer shell. The Slostin gun was tested and worked well but not adopted by the Soviet Government as they found it was overcomplicated and had no advantage over the existing PM 1910's, SG-43 Goryunov and RP-46 machine guns.

See also

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