This is a Rugged Suppressors Muzzle Brake, model MB012.
At only 1.5 oz. and 1.3" the M2 Brake is one of the lightest and shortest muzzle brakes on the market. The M2 Brake features our Dual Taper Locking System(TM) and is compatible with our Radiant762" Surge762" Razor762 and Micro30.
Features:
Lightest brake on the market
Dual taper locking system