Abstract: The trigger mechanism is characterized by the lack of the trigger moving bar, which function is assigned to the trigger lever. The trigger lever is not fastened with the trigger by any connecting element. The mechanism is equipped with the manual and falling safeguard. With using of the manual safety catch the putting on the safety catch of the firearm, against the shot, is controlled by bifacially manipulable fingerboards without the need of any change in the construction of the firearm or the need of the change of the grip of the firearm.

Abstract: The trigger mechanism of the auto-loading weapon enabling to select a suitable shooting operation by a single control element, which shooting operation is either single action/double action operation (SA/DA) with the safe hammer (7) activation having the possibility to lock the cocked hammer, or the exclusive double action operation (DAO). The trigger mechanism consist of the swivel (23), the main catcher (9.1) of the hammer and the auxiliary catcher (9.2) of the hammer, equipped with the means for the mutual collaboration and for the collaboration with the hammer (7), wherein the swivel (23) is placed in revolving and adjustable position, and it is controlled by the control element (22) on the weapon surface.

Abstract: The trigger mechanism is characterized by the lack of the trigger moving bar, which function is assigned to the trigger lever. The trigger lever is not fastened with the trigger by any connecting element. The mechanism is equipped with the manual and falling safeguard. With using of the manual safety catch the putting on the safety catch of the firearm, against the shot, is controlled by bifacially manipulable fingerboards without the need of any change in the construction of the firearm or the need of the change of the grip of the firearm.

Abstract: A firearm according to this invention has a bed (21) formed in the front part of a frame (2) in which is crosswise situated a pin (22). In the rear part of a barrel (3) there is formed a recess (31) of a helical form having on its opposed side ground off unlocking recess (32). The barrel (3) can rotate round its longitudinal axis due to a recoil resulting in unlocking the barrel (3) and a bolt element (4). The firearm (1) has a trigger (51) with independently from each other suspended single-shot draw bar (52) with a single-shot protrusion (53) engaging into a single-shot groove (42) and a double-shot draw bar (58) with a double-shot protrusion (59), engaging into a double-shot groove (43), the protrusions of which lean against the bottom surface of the bolt element (4). The double-shot mode of a firearm (1) is put out of operation by means of a safety catch situated in the frame (2). A locking catch is formed in one pressed piece of sheet metal.