The CZ 75 is a semi-automatic handgun introduced in 1975 by Česká Zbrojovka in caliber 9mm Parabellum. Among the more notable features are its all steel construction, high capacity double column detachable magazine, hammer forged barrel and ergonomic grip. Later models of the CZ 75 introduced the firing pin block safety feature. Two other versions of this handgun exist, a "combat" version with an adjustable rear sight and special grip as well as a "compact" version with a short 4.0in- (52mm) long barrel.