A firearm silencer includes a substantially cylindrical outer sheath having a first end and a second end, a barrel hole in the first end of the outer sheath, a damping element inside said outer sheath and connection means for connecting the silencer to a firearm barrel. The connection means include at least one clamping surface adapted to be pressed against the outer surface of said barrel. Further said connection means comprise a locking frame, at least one mounting lever hingedly connected to the locking frame and a twisting device functionally connected to the mounting lever for turning the mounting lever. At least one clamping surface is integrated to the mounting lever. Functional connection with the twisting device is arranged in a way that the mounting lever can by turned by using the twisting device.

A firearm silencer includes a substantially cylindrical outer sheath having a first end and a second end, a barrel hole in the first end of the outer sheath, a damping element inside said outer sheath and connection means for connecting the silencer to a firearm barrel. The connection means include at least one clamping surface adapted to be pressed against the outer surface of said barrel. Further said connection means comprise a locking frame, at least one mounting lever hingedly connected to the locking frame and a twisting device functionally connected to the mounting lever for turning the mounting lever. At least one clamping surface is integrated to the mounting lever. Functional connection with the twisting device is arranged in a way that the mounting lever can by turned by using the twisting device.

A muzzle device and blast sleeve system that includes a muzzle device having a muzzle device borehole, one or more venting apertures extending between the muzzle device borehole and an outer surface of the muzzle device, grouped venting apertures with at least one venting trough extending from or through each venting aperture to a muzzle device first end, and at least one screw recess; a blast sleeve having a blast sleeve borehole extending therethrough, wherein the blast sleeve borehole matingly corresponds to and allows for frictional engagement between the outer surface of the muzzle device and the inner blast sleeve sidewall of the blast sleeve borehole, and one or more venting ports formed through the blast sleeve to be aligned with at least two of the venting apertures; and an anti-rotation screw, positionable through the screw aperture and at least a portion of the screw recess.

An adjustable tuning device has a cup having a base defining an aperture configured to closely receive a limited rear portion of the muzzle portion such that a forward portion of the muzzle portion extends forward of the base, the cup having a rear surface configured to abut the forward-facing shoulder of a barrel, the cup being externally threaded, and a weight having internal threads configured to mate with the externally threaded cup and operable to move in a range of axial positions with respect to the cup. The cup may have a skirt extending rearwardly of the base. The weight may taper to a reduced diameter at a rear end. The cup may have an external diameter at an externally threaded portion, and the weight may have a rear portion having an internal diameter less than the external diameter of the cup.

A muzzle device mounting system having an outer collar; an inner collar attached or coupled to the outer collar, wherein the outer collar is in a fixed rotational position relative to the inner collar; a muzzle device positioned at least partially between the inner collar and the outer collar, wherein the muzzle device is rotatable relative to the outer collar and the inner collar; and a pawl lever pivotably positioned relative to the outer collar and the inner collar, wherein the pawl lever includes an engagement surface for engaging one or more splines of a muzzle adapter, and wherein the pawl lever is slidable relative to the outer collar and the inner collar along a longitudinal axis of the outer collar and the inner collar.

A muzzle device mounting system having an outer collar; an inner collar attached or coupled to the outer collar, wherein the outer collar is in a fixed rotational position relative to the inner collar; a muzzle device positioned at least partially between the inner collar and the outer collar, wherein the muzzle device is rotatable relative to the outer collar and the inner collar; and a pawl lever pivotably positioned relative to the outer collar and the inner collar, wherein the pawl lever includes an engagement surface for engaging one or more splines of a muzzle adapter, and wherein the pawl lever is slidable relative to the outer collar and the inner collar along a longitudinal axis of the outer collar and the inner collar.

A firearm muzzle accessory coupling device, system and method. The coupling device provides a front alignment taper and an intermediate outer diameter providing a plurality of successively alternating clearance recesses and pattern threaded lugs, wherein each lug provides a unique outward thread. The muzzle accessory provides a mounting interface socket having a plurality of successively alternating socket clearances and pattern threaded socket lugs along an inner circumference of a through bore. Each socket lug providing an inward thread dimensioned and adapted to receive the unique outward threaded muzzle accessory, thereby effectuating a plurality of compatible mating axial orientations between the coupling device and the firearm muzzle accessory.

A wiped muzzle device, such as a compensator, brake or flash suppressor. The wipe improves the function of the muzzle device by forcing muzzle blast gases through the ports or vents to either counter the force vector created by the muzzle blast gases or alter the mixing of gases to reduce muzzle flash.

A spacer for coupling a muzzle device to a muzzle of a barrel of a firearm includes an annular body. The annular body includes an inner portion having an inner wall. The inner wall defines a central opening and a central axis. A barrel engaging portion extending radially away from inner the portion and the central axis. The annular body also includes a muzzle device engaging portion extending radially away from the inner portion and the central axis. A channel is defined between the barrel engaging portion and the muzzle device engaging portion.

A muzzle flash simulator for use in an airsoft gun, comprising an internal passage, a detector, a controller, and multiple illuminating components. In response to a projectile passing through and away from the internal passage, the simulator will be triggered and flash multi-color lights on a projectile passage in front of the simulator. When each color light is illuminated on the moving projectile at a specific intensity at specified time periods, because of an afterimage phenomenon of the human eye, the surface of the moving projectile reflects the corresponding color and leaves a multi-layered light-trail accordingly.