Jun 3, 2025

US12320602 - Firearm muzzle attachment apparatus

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.

Assignee: Sound Moderation Technologies, LLC
Inventors: Todd A. Magee, Steven M. Pappas
Filing date: 2024-01-21

firearmsuppressormuzzleattachment

The patent describes a firearm muzzle attachment apparatus that securely mounts a sound suppressor to a firearm using primary and backup lugs, ensuring stability and preventing axial movement. The design allows for rapid attachment and detachment while maintaining a secure connection through angled bearing faces and an annular groove.

Claim 1

An apparatus comprising: a body extending along a longitudinal axis, said body having a proximal end and a distal end; an axial slot formed into said body; a socket extending angularly from said axial slot; and, an annular groove intersecting said axial slot; an attachment comprising: a back cap; a compression nut threaded upon said back cap; wherein said compression nut comprises a radially inwardly extending primary lug; wherein said back cap comprises a radially inwardly extending secondary lug; wherein said primary lug and said secondary lug can simultaneously move axially within said axial slot; and, wherein said secondary lug can move angularly within said annular groove while said primary lug is retained stationary within said socket. a body extending along a longitudinal axis, said body having a proximal end and a distal end; an axial slot formed into said body; a socket extending angularly from said axial slot; and, an annular groove intersecting said axial slot; an attachment comprising: a back cap; a compression nut threaded upon said back cap; wherein said compression nut comprises a radially inwardly extending primary lug; wherein said back cap comprises a radially inwardly extending secondary lug; a back cap; a compression nut threaded upon said back cap; wherein said compression nut comprises a radially inwardly extending primary lug; wherein said back cap comprises a radially inwardly extending secondary lug; wherein said primary lug and said secondary lug can simultaneously move axially within said axial slot; and, wherein said secondary lug can move angularly within said annular groove while said primary lug is retained stationary within said socket.

Google Patents

https://patents.google.com/patent/US12320602

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12320602