Gemtech 13816 5.56 ETM Muzzle Brake 1/2-28

5.56 ETM Muzzle Brake unmatched reliability in alignment with ETM equipped suppressors. This muzzle brake is 2.375″ long, pre-dimpled for pin and weld to 14.5″ barrel. Virtually eliminates the possibility of carbon locking with a suppressor attached.