Abstract: A mount for mounting a firearm sound suppressor or silencer to a firearm muzzle or muzzle device operates by using primary mounting lugs on the suppressor which engage sockets on the muzzle device. The primary lugs prevent the suppressor from axially moving with respect to the muzzle device, thus causing them to be fixed together as a unitary device. Angled bearing faces on the muzzle device and the sound suppressor are pressed against each other by rotating the sound suppressor on threads which drive the angled bearing faces together, thus tightening the primary lugs within their sockets. Backup lugs on the silencer engage an annular groove on the muzzle device to retain the silencer on the firearm to which it is mounted in case of failure of the primary lugs. Rapid attachment and detachment are supported by these structures.

Abstract: A firearm suppressor also known as a moderator includes a number of coaxially joined steel baffles for dissipating discharge gasses. Each baffle can have an internal funnel structure having a central aperture through which the firearm projectile passes. Adjacent funnel structures form interconnected primary and secondary chambers connected by a port through a flange separating the chambers. A notch in the central aperture of one funnel structure directs flow toward the port on the diametrically opposite side of the next funnel structure. A radial hole through the funnel structure connects successive primary and secondary chambers. The flange is axially located to be radially inward from an overlapping joint between two adjacent baffles in order to provide structural support to the joint.

Abstract: A mount for mounting a firearm sound suppressor or silencer to a firearm muzzle or muzzle device operates by using primary mounting lugs on the suppressor which engage sockets on the muzzle device. The primary lugs prevent the suppressor from axially moving with respect to the muzzle device, thus causing them to be fixed together as a unitary device. Angled bearing faces on the muzzle device and the sound suppressor are pressed against each other by rotating the sound suppressor on threads which drive the angled bearing faces together, thus tightening the primary lugs within their sockets. Backup lugs on the silencer engage an annular groove on the muzzle device to retain the silencer on the firearm to which it is mounted in case of failure of the primary lugs. Rapid attachment and detachment are supported by these structures.

Abstract: A firearm suppressor (1) also known as a moderator includes a number of coaxially joined steel baffles (20,40,60) for dissipating discharge gasses. Each baffle can have an internal funnel structure (30) having a central aperture (31) through which the firearm projectile passes. Adjacent funnel structures form interconnected primary and secondary chambers connected by a port (28) through a flange (37) separating the chambers. A notch (36) in the central aperture of one funnel structure directs flow toward the port (48) on the diametrically opposite side of the next funnel structure. A radial hole (29) through the funnel structure connects successive primary and secondary chambers. The flange is axially located to be radially inward from an overlapping joint between two adjacent baffles in order to provide structural support to the joint.