Abstract: An improved operating mechanism for an air gun is disclosed which features an attenuation element interposed between the operating level and the other elements of the gun. The attenuation element may comprise a single acting gas spring, such that the operating lever is prevented from violent motion returning it to the open position upon release during the closing movement from the open to the closed position, but in which movement of the lever from the open to the closed position is not impeded by the attenuation element.

Abstract: A recoilless competition rifle or competition pistol with an action which is mounted and guided in the firearm so as to be longitudinally displaceable on bearings and which returns during firing. The bearings have special beddings which compensate for deviations of the bearing axes from their ideal desired positions by adapting their shape to the particular conditions. Bearings made of elastic materials provide for a reversible displacement of material. Beddings comprise materials which can be poured or kneaded and which then solidify in situ to assume their final form as a result of direct shaping (initial shaping) on the delimiting surfaces.

Abstract: An adjustable pistol grip for a competition rifle or the like having three basic embodiments. In one embodiment, balls and sockets are located in the pistol grip and stock or body of the rifle. The balls and sockets are connected by a rod which is adjustably clamped either by a hydraulic piston, screw ring or expanding ball, in the socket. The connecting rod may be two part, each displaceably clampable relative to the other. Another embodiment employs a flexible wire fixed to the stock and pistol grip. On the wire are perforated balls alternating with short cylinders and a screw or lever which can apply tension to the array to hold the pistol grip required in any position in relation to the stock. Another embodiment employs a universal joint, one member of which is rigidly fixed to the pistol grip or stock, and the other member of which is rigidly fixed to a rod which is adjustably held in a mount supplied with a clamp.

Abstract: An electro-mechanical triggering mechanism for fire arms which comprises a signal receiver used as an input unit which converts a shot-triggering signal generated by the user pulling the trigger into an electrical signal and an electro-mechanical converter which forms an output unit, which unit receives the electrical signal from the input unit and acts on a shot-triggering element to initiate the shot. The improvement consists in that the electro-mechanical converter is an electrically or electro-magnetically deformable piezo-active element which is mechanically connected to the shot-triggering element to initiate the shot. The piezo-active element can be a cantilevered bending bar; a hollow body filled with piezo-active liquid which is capable of moving a piston or elastic membrane; or a bending bar having a series of longitudinally extending bores having electrically conductive walls throughout its middle.

Abstract: A spring support tube for the two helical compression springs loading a piston in a compressed air firearm consisting of at least two tube portions freely movable relatively to one another in the axial direction. The portions can be of the same diameter and disposed one behind the other in the annular space between the springs or being in sliding connection with each other. The sliding connection can be either telescopic or in a tongue and slot arrangement.