YHM Slant Brake/Compensator, Muzzle Brake, 556NATO, Black, 1/2-28, Fits AR-15 YHM-26-MB-A Available to order on-line. Ships in 5-14 days $77.70
YHM Phantom 5.56mm Smooth Compensator/Flash Hider 1/2-28 Threads Available to order on-line. Ships in 5-14 days $34.30