Abstract: An attachment system for attaching an accessory to the muzzle end of a firearm includes an accessory such as a silencer or sound suppressor, a muzzle adapter, and a multi-functional assembly, disassembly and locking device that locks the muzzle adapter onto the body of the suppressor. An end of the device is also configured to mate with the muzzle adapter to provide torque to selectively assemble or disassemble the muzzle adapter to the suppressor.

Abstract: An attachment system for attaching an accessory to the muzzle end of a firearm includes an accessory such as a silencer or sound suppressor, a muzzle adapter, and a multi-functional assembly, disassembly and locking device that locks the muzzle adapter onto the body of the suppressor. An end of the device is also configured to mate with the muzzle adapter to provide torque to selectively assemble or disassemble the muzzle adapter to the suppressor.

Abstract: A system for attaching an accessory to a firearm includes a muzzle device configured for attachment to the muzzle end of the firearm, the muzzle device having a first coarse-threaded engagement means and one of an annular grooved surface and a grooved surface engagement mechanism, and an adapter device. The adapter device includes an adapter having a forward portion including an accessory engagement means for receiving the accessory and a rearward portion having a second coarse-threaded engagement means formed on an inner surface of the adapter, a biasing mechanism received on the rearward portion, and a retainer ring received on the rearward portion adjacent to the biasing mechanism, the retainer ring having the other of the annular grooved surface and the grooved surface engagement mechanism. The male coarse-threaded engagement means and the female coarse-threaded engagement means cooperate to releasably secure the adapter device to the muzzle device.

Abstract: A sound suppressor for a firearm includes a generally cylindrical housing having a proximal end and a distal end, a plurality of baffle elements removably and slidably received within the housing, the baffle elements defining a plurality of expansion chambers within the housing, and an end closure element received on the distal end of the housing.