US Patent 11994354 Firearm noise suppressor construction

Provided is a firearm noise suppressor having a baffle chamber unit defining a plurality of separated interior chambers and having a length and a substantially imperforate outer wall surface. The interior chambers are separated by at least one interior baffle wall with a central opening configured to allow passage of a projectile. A removable identification member with identifying indicia thereon assembled on the baffle chamber unit covers at least a portion but less that the entire length of the outer wall surface of the baffle chamber unit's length and a selected area of the member is affixed to the outer surface of the baffle chamber unit so as to prevent the removal of the member without a machining process to the selected area.