AR-15 Full Top Rail MLOK Handguard (Includes Barrel Nut & Hardware). Handguard is made of 6061-T6 aluminum and anodized black per mil-spec MIL-A-8625F, TYPE III, CLASS 2. The barrel nut is 4140 PH steel. Full top rail + MLOK slots on 7 other sides. Includes anti-rotation tabs. Mfg: Sharps Bros
