A muzzle mounted device system comprised of a first element connected to a barrel muzzle and has an outer recess, and a gas seal element forward of the recess. The device body has a bore configured to sealably receive the gas seal element. The device body has a plurality of radial passages and a plurality of balls each received in one of the respective radial passages. The collar encircling the device body and movable axially between a released position in which the balls are free toward a radial excursion for removal of the body from the first element, and a secured position in which the balls are biased into the outer recess of the first element.

A tubular assembly for attaching accessories to gun barrels. The assembly includes a first tubular, including first interior threads on an interior surface thereof and a collet on a first end thereof. The assembly includes a second tubular, including first exterior threads on an exterior surface thereof. The first exterior threads mate with the first interior threads. The second tubular includes a ridge of knurls on the exterior surface thereof. The ridge of knurls is adapted to frictionally engage the collet when the first tubular and the second tubular are assembled.

A suppressor mount device can include a first end having a barrel coupling feature adapted to couple the suppressor mount device to the barrel of a firearm. The device can further include a second end oriented opposite the first end along a bore axis and a suppressor coupling feature adapted to receive and retain a firearm suppressor. The device can further include a bore forming a void along the bore axis within the suppressor mount device, the bore adapted to allow passage of a projectile along the bore axis from the first end to the second end. The device can further include a reaming feature formed on an outer surface of the second end adapted to engage an inner surface of the firearm suppressor. The reaming feature can include a channel which is at least partially oriented non-parallel and non-perpendicular to the bore axis.

The present invention provides a quick coupling muzzle booster and suppressor adaptor system having a quick coupling muzzle booster and suppressor adaptor and direct rifle mount that can be coupled to a suppressor and mounted on a lock breech pistol or pistol caliber carbine. The system according to the invention provides wherein the quick coupling muzzle booster includes a booster slide with an external quick connect for coupling to the suppressor adaptor, and wherein the external quick connect of the booster slide includes a plurality of lugs corresponding to a proximal end of a housing of the suppressor coupling, and wherein the muzzle booster includes a booster piston that is coupled to a pistol. The system according to the invention may provide wherein the muzzle booster includes a booster piston nut with a spring, wherein the booster piston nut is coupled to the booster piston.

A fixed-to-tilted silencer adaptor for three-lug attachments enables the use of tilting barrel gun silencers or fixed non-moving barrel gun silencers with different guns of the same caliber. The present invention enables users to utilize a gun silencer with the desired gun even if the gun silencer does not match the design of the gun. To do so, the present invention may comprise a recoil booster and a three-lug adaptor. The recoil booster is designed to accommodate the movement of a tilting barrel while facilitating the connection between the gun silencer and the gun's barrel. The recoil booster also securely receives the three-lug adaptor to facilitate the quick attachment of the recoil booster to the gun's barrel. The three-lug adaptor is designed to enable the quick attachment of the recoil booster to the gun's barrel without interfering with the movement of the gun's barrel when connected to a tilted barrel.

A firearm muzzle accessory coupling device improvement system and method. The coupling device provides a front alignment taper of 17-25 degrees included angle, and an intermediate outer diameter providing a thread of 14 to 18 threads per inch. The muzzle accessory provides a mounting interface socket having an operatively associated thread on the inner circumference of a through bore. The threads of the coupling device and muzzle accessory effectuate mating between the coupling device and the firearm muzzle accessory in a single axial orientation.

A handguard for mounting on a firearm with a housing axis, including: a housing with a slit and with a clamping device including a lever with a center element which lies in a normal plane to the housing axis in a through-opening. It has a recess in its central region, a thread at one end, a lever arm at the other end, and a nut with an internal thread. According to the invention, the center element has a conical nut section. In the assembled state, a nut is screwed onto the thread and thus the center element is arranged in an annular groove of the travelling nut so as to make contact with the center element.

A gas tube support system for a gas-actuated firearm contains an annular or bored housing for receipt of a gas tube therein, thereby securing the gas tube during operation of the firearm. At least one or more bores are drilled or formed within the annular or bored housing to provide an impingement of the gas tube as it extends through the annular or bored housing. One or more fasteners are threadedly or otherwise received within a corresponding one of one or more respective bores, thereby securing the gas tube within the annular or bored housing. A gas-actuated firearm containing the gas tube support system is also provided.

An optic guard for a firearm may include: a frame; and a bracket having a first side to attach to a firearm assembly, the bracket integrally formed with the frame or fixably attached to the frame at a second side of the bracket. The frame may be arranged to protect a top and sides of the optic when the first side of the bracket is attached to the firearm assembly. In some embodiments, the second side of the bracket defines an optic attachment, wherein the frame protects the top and sides of the optic when the optic is coupled to the bracket using the optic attachment. In some embodiments, the first side of the bracket may define a protrusion or opening to mate with an opening or protrusion in front of an optic mounting platform.

The adding of a taper at the end of the handgun barrel having a threaded end for accessories that matches an opposing taper in an accessory to enable more precision in the alignment of the accessory on the handgun barrel and a more secure interface is disclosed.