Abstract: The sear is rotatably supported in the frame of the firearm to rotate around an axis of rotation. The hammer is pivotally mounted in the frame to pivot around a pivot axis. The hammer includes a striking surface. The sear includes a blocking surface which cooperates with a resting surface of the hammer. The position of the blocking surface of the sear which is determined by its axis of rotation, the position of the striking surface of the hammer, which is determined by the location of the pivot axis of the hammer, and the position of the rear end of the firing pin are selected in such a manner that when the hammer is in its decocked position, in which position the resting surface contacts the blocking surface, the striking surface of the hammer is at a distance from the rear end of the firing pin. Accordingly, the hammer does not contact in its decocked state the firing pin such that eg upon a dropping of the firearm a shot may inadvertently be fired.

Abstract: A rotatably mounted hammer lock member has a hammer stop abutment. The trigger rod has a first operating projection received in a recess of the hammer lock member such that a reciprocal movement of the trigger rod causes a corresponding rotational movement of the hammer lock member. An interrupter member is hingedly mounted to the hammer. A projection at the rear end of the trigger rod is loosely received in a recess of this interrupter member. The rear end of the trigger rod includes a chamfered control surface area. The frame of the gun includes a corresponding chamfered control surface area. When the trigger rod is moved by the trigger for firing the gun, it rotates the hammer lock member such that its hammer stop abutment will be moved out of the way of the hammer.

Abstract: An arrresting pin having a recessed circumferential section is inserted in the frame of the gun. A pin locking spring is biased into the mentioned recess. This locking spring prevents the arresting pin from falling out of the frame. A simple rotation of the arresting pin moves the locking spring out of the way, allowing an easy disassembling. The arresting pin includes further a planar jacket section, co-operating with a corresponding abutment surface at the slide for limiting the travel during the recoil of the slide.

Abstract: The magazine, which is usable specifically for hand guns, is capable of storing cartridges of various sizes, i.e. diameters. The magazine lips are bent inwards with such a curvature that their inner surface defines part of a jacket of a cylinder, which has a diameter which corresponds substantially to the diameter of the base of the largest cartridge which the magazine can store. The uppermost edges of these magazine lips extend at an angle relative to each other such that they diverge in the firing direction of the magazine. The distance between these edges is at any point along their extent smaller than the diameter of the smallest cartridge which can be stored in the magazine. A spring biassed feeder within the magazine has a cartridge support surface, which includes a bulged surface section. This bulged surface section ensures a line contact with any size cartridge or shell, respectively, which is stored in the magazine.

Abstract: A locking plunger which is perpendicularly movable relative to the direction of movement of the firing pin allows or prevents the axial movement of the firing pin to fire the gun. This locking plunger is spring biassed to abut a safety lever which is part of the sear of the operating members of the gun. The safety lever is located and arranged such on the sear that it allows a movement of the locking plunger into the firing pin unlocking position upon the operating members of the gun reaching the end of the trigger slack. Accordingly a movement of the locking plunger into the unlocking position will proceed not earlier than the sear snapping into the firing position. Any other accidental limited movements of the operating parts of the gun including such of the hammer cannot cause an axial movement of the firing pin because such movement is positively prevented by the locking plunger. Therefore, an accidental firing of the gun is positively prevented.