Abstract: A recoil mechanism has a hollow cylinder having a first portion adjacent to a closed end having a first inner diameter and a second portion adjacent to an open end having a second inner diameter, and an outwardly facing flange at the open end thereof. An outer spring is positioned over the hollow cylinder and has a second end in contact with the outwardly facing flange. A rod assembly includes a rod coupled to an endplate at a first end thereof and an enlarged portion towards a second end thereof, a washer mounted on the rod between the enlarged portion and the endplate, and a rod spring mounted over the rod between the small washer and the endplate. Moreover, the rod assembly is positioned within the hollow cylinder by inserting the second end of the rod into the open end of the hollow cylinder.

Abstract: In some implementations, the device may include an elastic skin configured to be coupled over a front fixed portion of a frame of a firearm and a rear portion of a slide of a firearm. The elastic skin has a first low level of tension when the slide is in the first rest position and a second higher level of tension when the slide is in the second chamber position.

Abstract: A handguard grip assembly has a connector to be fixed to a barrel of a rifle, the barrel having a barrel axis, a grip having a grip axis and adapted to be held by a user of the rifle and a flexible joint connected between the connector and the grip for allowing the grip and grip axis to pivot to any angle with respect to the barrel axis.

Abstract: A handguard grip assembly has a connector to be fixed to a barrel of a rifle, the barrel having a barrel axis, a grip having a grip axis and adapted to be held by a user of the rifle and a flexible joint connected between the connector and the grip for allowing the grip and grip axis to pivot to any angle with respect to the barrel axis.

Abstract: A buffer assembly for a firearm with a frame containing a bolt that moves during a firing cycle, the assembly having a case containing a movable piston, a piston spring for biasing the piston forwardly, a spring flange engaged with the piston spring, an end cap for closing the case, one or more resilient washers between the spring flange and the end cap, and a buffer spring in the piston spring that is shorter than the piston spring, so that during a firing cycle, the bolt engage a contact end of the piston to move the piston rearwardly the piston spring to decelerate the bolt until the piston engages the buffer spring to further decelerate the bolt, the resilient washers compressing to contribute to the deceleration.

Abstract: A reduced stroke length telescopic recoil mechanism for a firearm having a barrel and a slide movable rearwardly with respect to the barrel during an initial part of a firing cycle, and forwardly during an ending part of the firing cycle, the recoil mechanism having a base, an axle fixed to the base, a central tube slidably mounted on the axle, an inner spring engaged between the base and the central tube for biasing the central tube forwardly away from the base, an outer tube slidably mounted with respect to the central tube, a central spring engaged between the central tube and the outer tube for biasing the central tube forwardly away from the base, and an outer spring engaged between the slide and the outer tube for biasing the slide forwardly of the base.

Abstract: A telescopic recoil system for a firearm having a receiver and a bolt carrier includes a recoil system base, an axle fixed to the base, a central buffer tube slidably mounted on the axle, an axle buffer spring between the base and central buffer tube, biasing the central buffer tube away from the base, an outer tube slidably mounted on a forward portion of the central buffer tube, a spring buffer tube slidably mounted on a rearward portion of the central buffer tube, a rear buffer spring between the base and spring buffer tube, biasing the spring buffer tube away from the base, a central spring between the spring buffer tube and outer tube, biasing the outer tube away from the spring buffer tube and away from the base and an exchangeable spring between the outer tube and the bolt carrier, biasing the outer tube away from the bolt carrier.

Abstract: A buffer assembly has a rod, a cap having a forward end against which a bolt carrier pushes during a firing cycle, the cap being movable along the rod, a shock absorbing plug attached to a rearward end of the rod for engaging an end wall of a receiver extension during an intermediate part of the firing cycle, a buffer tube moveable on the rod, a buffer spring engaged between the plug and the buffer tube for biasing the buffer tube toward a forward position, a counterweight mounted for movement on the rod, a shock absorbing washer between the counterweight and the cap for smoothing an impact between the counterweight and the cap at an end of the firing cycle, and a counterweight spring that is weaker than the buffer spring, for biasing the counterweight toward the cap.

Abstract: A floorplate for a handgun magazine is used for the breakage of glass panes and is manufactured so that it fits all types of handgun magazines without disrupting the overall function of either the magazine or the handgun. The floorplate has a hole in which a pin is incorporated. The floorplate, when placed on the magazine of the handgun, allows the magazine to be also used as a hand tool for the breakage of glass panes. Additionally, when the magazine with the floorplate and incorporated pin is placed inside the handgun, it allows the handgun to be also used as a hammer-like tool for the breakage of glass panes.

Abstract: A floorplate for a handgun magazine is used for the breakage of glass panes and is manufactured so that it fits all types of handgun magazines without disrupting the overall function of either the magazine or the handgun. The floorplate has a hole in which a pin is incorporated. The floorplate, when placed on the magazine of the handgun, allows the magazine to be also used as a hand tool for the breakage of glass panes. Additionally, when the magazine with the floorplate and incorporated pin is placed inside the handgun, it allows the handgun to be also used as a hammer-like tool for the breakage of glass panes.

Abstract: In a recoil mechanism for a gun having a frame with a barrel, a slide that is movable rearwardly of the frame and barrel when the gun is fired, and a main recoil spring, the improvement is a plug having an inner cylindrical surface with a helical groove for receiving and thereby deactivating the bias of a plurality of turns of the main recoil spring, the recoil spring having a plurality of turns threaded into the helical groove for deactivating the bias of the plurality of turns during a firing of the gun.

Abstract: A recoil mechanism for a gun with a frame, a barrel and a slide, has a cylinder with a rear with external flange and an internal diaphragm spaced forwardly of the flange and between a rear chamber and a front chamber in the cylinder. A nut is fixed to the frame and an axle has a rear end threaded to the nut and extends in the cylinder. The axle has a collar trapped in the front chamber by the diaphragm. A first spring around the cylinder, has a front end abutting the slide and a rear end abutting the flange. A second spring extending at least partly in the rear chamber has a rear end abutting the nut and a front end abutting the diaphragm. A third spring in the front chamber, is shorter in length than the front chamber. A recoil adjusting plug is used with or without the recoil mechanism.

Abstract: A recoil mechanism for a gun with a frame, a barrel and a slide, has a cylinder with a rear with external flange and an internal diaphragm spaced forwardly of the flange and between a rear chamber and a front chamber in the cylinder. A nut is fixed to the frame and an axle has a rear end threaded to the nut and extends in the cylinder. The axle has a collar trapped in the front chamber by the diaphragm. A first spring around the cylinder, has a front end abutting the slide and a rear end abutting the flange. A second spring extending at least partly in the rear chamber has a rear end abutting the nut and a front end abutting the diaphragm. A third spring in the front chamber, is shorter in length than the front chamber. A recoil adjusting plug is used with or without the recoil mechanism.