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The CZ 52 pistol is a roller-locked short recoil–operated, detachable box magazine–fed, single-action, semi-automatic pistol chambered for the 7.62×25mm Tokarev cartridge (the gun was originally designed for 9×19mm Parabellum caliber but due to political pressures had to be redesigned for the then-standard Soviet pistol cartridge).
The Tanfoglio Combat/Standard models are evolved copies of the famous CZ-75 pistol design, with manufacturing improvements. Tanfoglio introduced the firing pin block before CZ, and its operation is different from what is employed in modern CZs. The firing pin block is kept in an upwards position, blocking the firing pin until the trigger is pulled.
A firing pin or striker is a part of the firing mechanism of a firearm that impacts the primer in the base of a cartridge and causes it to fire. In firearms terminology, a striker is a particular type of firing pin where a compressed spring acts directly on the firing pin to provide the impact force rather than it being struck by a hammer.
Older designs such as the CZ 52 and Colt Single Action Army are exceptions. However, dry firing a rimfire firearm, striker based firearms or guns with angled firing pins (such as revolvers with hammer-mounted firing pins or older shotguns) can damage the gun. [citation needed] Furthermore, damage can occur to the chamber mouth of a rimfire ...
The CZ 2075 features an inertia pin safety that prevents the firing pin from protruding through the pin hole and making contact with the back of a chambered cartridge in the event the pistol is dropped. The CZ 2075 BD model replaces the manual safety with a decocker, allowing the user to safely lower the hammer and prevent accidental firing ...
A small number of rimfire and centerfire firearms of older design should not be test-fired with the chamber empty, as this can lead to weakening or breakage of the firing pin and increased wear to other components in those firearms. In the instance of a rimfire weapon of primitive design, dry firing can also cause deformation of the chamber edge.
The origin of the roller-locking is debated: [1] even though the general principle of utilizing "ball bearing parts" under radial pressure "for preventing uncoupling of the coupling members" was known no later than 1910s, [2] it was apparently not used in firearms until 1930s.
The CZ-45 holds 8 rounds in the magazine and has a simple groove down the top of the slide for sighting. [1] The main design weakness in the CZ-45 is a brittle firing pin like the CZ 52. Dry-firing the CZ-45 may damage the firing pin, and also the extractor which acts as the firing pin retainer; damaging the firing pin retainer bulge on the ...