Patent ID: 8505680

Claim:
A firearm attachment comprising: a base adapted to be coupled to a firearm; a plurality of substantially longitudinal tines extending forwardly from the base and arranged circumferentially around a central axis of the firearm attachment, wherein the tines and at least a front portion of the base are adapted to be inserted into a socket of a firearm sound suppressor; a frusto-conical external surface substantially at a rear portion of the base and providing a plug configured to be received by a complementary interior surface of the socket; a tab extending longitudinally along the base from the plug and adapted to be received by a slot extending longitudinally along the firearm sound suppressor and disposed in the interior surface to rotationally align the firearm sound suppressor relative to the firearm, wherein the slot tapers from a maximum depth at a rear aperture of the socket to a minimum depth within the socket; at least one bore substantially concentric with the central axis; three longitudinal slots defined by sidewalls of adjacent ones of the tines and adapted to pass combustion gases from the bore; wherein the sidewalls extend from the bore to an outer circumfery of the firearm attachment; and wherein sidewalls of adjacent tines lie in respective planes that intersect at an angle in a range of approximately 9 degrees to approximately 12 degrees.