Abstract

The invention relates to firearm stocks, and specifically to the stocks of biathlon rifles. An adaptive stock is provided on a rigid metal frame. The angle of the butt can be adjusted in longitudinal section along a vertical plane, and the length can be adjusted by means of guides, with the possibility of horizontal displacement. The butt includes a securing element which is detachable and height-adjustable. The height of a cheekpiece can be adjusted by means of guides, the angle of the cheekpiece can be adjusted in the transverse and longitudinal sections, and the cheekpiece can be displaced horizontally in directions perpendicular to the longitudinal axis thereof. A grip can be length-adjusted and also adjusted horizontally, perpendicular to the vertical plane passing along the axis of the barrel of the firearm. The angle of a forearm can be adjusted in longitudinal section along a vertical plane. A front-hand support is provided on the trigger guard, can have its length and height adjusted and can be turned horizontally relative to the trigger guard. A firearm stock is thus adaptable to the individual needs of a shooter.

IPC Classes  ?

• F41C 23/14 - Adjustable stock or stock parts, i.e. adaptable to personal requirements, e.g. length, pitch, cast or drop
• F41C 23/16 - ForestocksHandgripsHand guards
• F41C 23/20 - ButtsButt platesMountings therefor
• F41C 7/00 - Shoulder-fired smallarms, e.g. rifles, carbines or shotguns

Abstract

The utility model relates to a trigger mechanism for small arms. The trigger mechanism comprises a body, a spring-loaded sear, a lever, a trigger with a spring, and adjustment screws which are installed in said body and vertically oriented. The adjustment screws include a screw for trigger-pull adjustment, a screw for adjusting the trigger return, a screw for adjusting the triggering motion, a screw for adjusting the overlap of the sear with the lever, and a screw for pre-trigger-pull adjustment. Furthermore, the screw for pre-trigger-pull adjustment acts on the trigger, and the screw for trigger-pull adjustment acts, by means of the spring, on the lever, which is disposed between the sear and the trigger. The technical result achieved is that of enhancing trigger adjustments with pre-trigger adjustment.

IPC Classes  ?

• F41A 19/06 - Mechanical firing mechanisms
• F41A 19/16 - Adjustable firing mechanismsTrigger mechanisms with adjustable trigger pull
• F41C 7/00 - Shoulder-fired smallarms, e.g. rifles, carbines or shotguns

Abstract

The claimed longitudinally sliding bolt for a multi-charge small-caliber firearm for a rimfire cartridge can be used, for example, in a sports or hunting firearm. The claimed bolt has a rectangular projection for extracting the cartridge from the magazine, which rectangular projection is formed in the lower part, and comprises a firing pin with a firing pin head, which firing pin is arranged in a cylindrical channel formed within the rectangular projection for extracting the cartridge from the magazine in such a way that the firing pin head is arranged at the level of the lower edge of the cartridge shell in order that the firing pin head strikes at the lower point of the edge of the cartridge shell. The use of the modified bolt makes it possible to increase the firing accuracy by 10-15%.

IPC Classes  ?

• F41A 3/20 - Straight-pull operated bolt locks, i.e. the operating hand effecting only a straight movement parallel to the barrel axis
• F41C 7/00 - Shoulder-fired smallarms, e.g. rifles, carbines or shotguns

Abstract

The invention relates to the field of gun technology. The trigger mechanism comprises a body, a spring-loaded sear, a trigger with a spring, and adjustment screws, including a screw for adjusting the triggering and a screw for adjusting the triggering motion. The trigger mechanism additionally comprises a screw for adjusting the amount of contact of the trigger with the sear. All of the adjustment screws are mounted in the body and are oriented vertically. The sear is provided with a tooth which can come into contact with a tooth present on the trigger. Furthermore, the trigger tooth surface which interacts with the tooth surface is curvilinear. The technical result consists in increasing the reliability and simplicity of assembling and servicing the device.

IPC Classes  ?

• F41A 19/16 - Adjustable firing mechanismsTrigger mechanisms with adjustable trigger pull
• F41A 19/24 - Release-trigger mechanisms, i.e. the striker element being released during the return movement of the trigger subsequent to trigger pull
• F41C 7/00 - Shoulder-fired smallarms, e.g. rifles, carbines or shotguns