Rearden MFG R2S Flash Hider, 1/2-28, Black, 10086

Always use an alignment rod to ensure that the entire system is set up correctly. Make sure all surfaces are cleaned and the muzzle device has been torqued and Rockset to the barrel. Use on a Q can voids your warranty be warned. Torque the muzzle device to approximately 15-25 ft lbs.