Available for standard 7.62x57mm threaded barrels, the Keymount
Muzzle Brake is your gateway to silence. When you're ready for peace and
quiet use the Keymount brake to quickly attach your Sandman-L(TM),
Sandman-S(TM), Sandman-K(TM) to your rifle. If you're not quite ready to
turn up the silence, you can still employ the finest brake on the
market and experience a flatter shooting rifle with minimal concussion
compared to traditional muzzle brakes.