Lead Star Arms 11" Gunt AR-15 Handguard has a unique design that offers ultra-capture around the barrel nut, eliminating the need for anti-rotation tabs. The 11" Grunt AR-15 Handguard has been CNC machined from 6061-T6 aluminum for extreme precision and finished with either a Cerekote finish or a type III class 2 hard coat anodized finish for enhanced durability. The 11" Grunt handguard is compatible with 10.5" barrels and is 11 1/8" long at the bottom of the handguard. The mouth of the handguard is designed so that the muzzle device stays tucked in the handguard for a clean appearance.Features:Eliminates harmonics from attached accessories greatly improving weapon accuracy.Four Picatinny slots at the 12 o’clock position for mounting back up sights.M-LOK slots at the 3 and 9 o’clock positions and full-length M-LOK at the 6 o’clock position for mounting only the Picatinny rail needed or accessories.Includes barrel nut, shims, and mounting screws.Type III Class 2 Hard Coat Anodized or Cerakote finish.Weight: 6.2 ozBarrel nut, shims, and mounting hardware: 1.6 oz.Barrel nut installs with standard A2 barrel nut wrench.