6.8mm/7.62mm/9mm 5M1 Muzzle Brake / Compensator
Redesigned for the 6.8mm SPC cartridge, 7.62X39mm cartridge and 9mm cartridge. The 5 port design has no downward facing port which helps eliminate dust problems when shooting in the prone position. This brake maintains the aggressive front end of the original for hand-to-hand situations. For 1/2"-36 threaded barrels only. Includes crush washer.