Abstract: A firearm noise suppressor having an internal base frame member with a plurality of inserts mounted thereto. In one form the suppressor is provided with a slip chamber allowing gas to be forwarded to a longitudinally forward chamber for pre-compression of gas therein.

Abstract: A mounting device for securing a firearm to a support structure such as a motor vehicle includes: a base plate defining a generally planar mounting surface; a locking pin, a guide pin, and a plurality of mounting posts extending away from the mounting surface in orthogonal relation thereto. The mounting posts primarily support the firearm and are arranged on the base plate to receive the firearm in a direction orthogonal to the mounting surface and to retain the predetermined firearm against removal from the mounting surface in directions parallel thereto. A cover plate includes an opening through which the locking pin extends and a slot through which the guide pin extends for support of the cover plate in spaced, generally parallel and overlapping relation to the mounting surface.