Abstract: Firearm comprising a receiver (2); a barrel (6) mounted with one end on the receiver (2); a breech (8) equipped with a loading lever (9) mounted, in a way so that it can slide, in the receiver (2); at least one return spring (15) to return the breech (8) to its closed position, characterized in that the return spring (15) is a tension spring of the ‘constant-force’ type that is mounted between the breech (8) and a fixed support (12) with respect to the receiver and the barrel.

Abstract: Butt with recoil pad for a shoulder-held firearm, with the butt comprising a recoil pad, characterized in that the recoil pad is mounted on the butt by means enabling the position of the recoil pad to be adjusted with respect to the butt so as to be able to personalize the position of the recoil pad for the shooter with respect to an average position in which the recoil pad is primarily located in the extension of the butt.

Abstract: Shoulder fire arm comprising a frame a barrel and a stock for holding the weapon against the shoulder and or the cheek of the gunman wherein the stock is formed of a body and a recoil pad at the end of this body, the recoil pad being connected to the body of the stock by means of a shock absorber and the absorber is placed in such a way that during the shot the stock moves down from the shoulder and cheek of the gunman.

Abstract: Butt with recoil pad for a shoulder-held firearm, with the butt comprising a recoil pad, characterised in that the recoil pad is mounted on the butt by means enabling the position of the recoil pad to be adjusted with respect to the butt so as to be able to personalise the position of the recoil pad for the shooter with respect to an average position in which the recoil pad is primarily located in the extension of the butt.

Abstract: Exchangeable choke for a fire arm with a smooth gun barrel, whereby said choke is provided with mechanical coupling means to mount and dismount the choke, characterized in that the choke is equipped with additional sealing means so as to seal the choke, at least in one place, in relation to the gun barrel, as well as to prevent the choke from being unscrewed during the shooting.

Abstract: Shoulder fire arm comprising a frame a barrel and a stock for holding the weapon against the shoulder and or the cheek of the gunman wherein the stock is formed of a body and a recoil pad at the end of this body, the recoil pad being connected to the body of the stock by means of a shock absorber and the absorber is placed in such a way that during the shot the stock moves down from the shoulder and cheek of the gunman.

Abstract: A firing mechanism for fire arms comprising a casing (1) and a trigger guard (1′), a barrel (3), a mobile bolt (5) in the casing (1), comprises a hammer (7) controlling a striker (10), a spring (9) pushing the hammer (7) in its tumbled position, a tumbler (11), a trigger (14) controlling the tumbler (11) by means of a separator (15), a bolt stop (19) which stops the backward movement of the bolt (5) in a locked position and makes the bolt (5) assume another position, a control lever (20) which co-operates with the bolt stop (19) which is also mounted in a revolving manner in the trigger guard (1′).

Abstract: Ejector for hunting weapons, characterized in that it shows on its rear extremity two arms (9, 10) separated from each other by a groove (8), one of the arms (9) being provided with a screw of which one of the extremities can act on the other arm (10) in order to adjust the position of this latter arm (10) in relation to its ejection sear.