The ALFA Defender is a Czech

Czech Republic

The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....

-made semi-automatic pistol created for military

Military

A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

, Law enforcement

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...

, and Sport shooting purposes. There are two different series of Pistols made by ALFA, the Combat

ALFA Combat

The ALFA Combat is a Czech-made semi-automatic pistol created for military, Law enforcement, and Sport shooting purposes. There are two different series of Pistols made by ALFA, the Combat series and Defender Series.-Overview:...

 series and Defender Series.

Overview

As stated on the manufacturer's website:

The proven concept of the self-loading service and defence pistol in modern design with a polymer material frame. The breech locks in vertical movement of the barrel and the action cycle drive is controlled with short recoil of the back blow assembly. This pistol uses Browning-type breech locking system distinguished with simplicity, reliability and dirt-resistance. The trigger and striker mechanisms are designed with the minimum number of parts to allow also field disassembly for emergency cleaning. It works in both the single- and double-action modes being equipped with quick response manual safety lock. The arm is equipped with a striker lock designed to allow permanent carrying of a cartridge loaded in the cartridge chamber having the gun always ready-for-use. Low weight, high magazine capacity and simple handling are appealing for demanding shooters. The high precision permits use of the gun for centre fire shooting sports disciplines. The three effective bores and two size versions offer a selection for a policeman as well as a sports shooter.

And as stated on the Modern Firearms page:

The CZ-TT pistol is made in Czech republic by CZ Strojirna s.r.o. company, located in the city of Strakonice. This recently introduced pistol follows the pattern of the another famous Czech pistol, the CZ-75, but with the polymer frame instead of the original steel frame of CZ-75, and with modified locking system. CZ-TT also has a shorter barrel combined with full-size grip, which accommodates high capacity magazines. The CZ-TT is comfortable to carry and hold, with well-placed controls, and dimensionally suitable for both duty carry and concealed self-defense carry. Current pistols have relatively large slide serrations, suitable mostly for gloved hands, but I was told that the new production pistols will have more comfortable slide serrations.

The CZ-TT is a short recoil operated, locked breech pistol. The barrel is operated using a Browning cam system, and is locked to slide by single lug via large ejection port. Frame is made from high impact-resistant polymer. Double Action trigger system with exposed hammer has internal firing pin safety, as well as manual safety, mounted on the left side of the frame. Manual safety can lock the hammer either in cocked or uncocked position. A CZ-TTL version is similar to basic CZ-TT but features an integral accessory rail on the frame, under the barrel. Standard sight are fixed, with front sight being integral to the slide, and rear sight being dovetailed into the slide.

NOTE: CZ-TT is not identical to Alfa Defender:

• CZ-TT uses 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...
  
  -Petter
  Charles Petter
  Charles Gabriel Petter was a Swiss firearms designer.Charles Petter studied mechanical engineering in Bern and was a lieutenant in the infantry of the Swiss Army. He became an employee of Krupp in Essen. During World War I he served in the French Foreign Legion, where he obtained French...
  
   locking system. Made by CZ Strojirna s.r.o. (Strakonice)
  

• Alfa Defender uses Browning-FN system. Made by Alfa-Proj s.r.o. (Brno)

See also

List of firearms

ALFA Combat

ALFA Combat

The ALFA Combat is a Czech-made semi-automatic pistol created for military, Law enforcement, and Sport shooting purposes. There are two different series of Pistols made by ALFA, the Combat series and Defender Series.-Overview:...

Series ALFA

Series ALFA (Revolvers)

The ALFA Series of Revolvers are a series of Czech-made revolvers designed for law enforcement, private security agencies, personal security, and hunting needs. The ALFA Series is part of the three revolver series made by ALFA:...

Series ALFA steel

Series ALFA Steel (Revolvers)

The Series ALFA Steel is a series of Czech-made revolvers designed for sport shooting and personal defense needs, and for users who favor the .32 S&W and .38 Special cartridges. The ALFA Series Steel is part of the three revolver series made by ALFA: Series ALFA, Series ALFA Steel, and Series HOLEK...

Series HOLEK