pistols are short-recoil operated, locked-breech weapons with an aluminium frame. The locking system is of the Walther type, with a vertically-tilting locking piece located below the breech area of the barrel. The trigger is double-action, with an exposed hammer. Original Model 92 pistols had a frame-mounted safety which was applied only when hammer was cocked; all subsequent pistols (except for some limited production civilian-only sporting models) either had a slide-mounted safety lever or no safety lever at all. On some pistols, such as the Model 92G adopted in France, the levers do not lock themselves in the lowered position but return to the “fire” position once released – their function is limited only to safe decocking of the hammer. Some other models, such as the Model 92D, are double-action-only pistols with no manual safety or decocker. All pistols of current production are fitted with an automatic firing pin block safety. Magazines are double stack, with the magazine release button located in the base of the trigger-guard on all 92-series pistols made since 1981. Sights on service models are of fixed type, with a dovetailed rear blade, usually with high-contrast inserts.