2a Armament Aethon, Handguard, Hardcoat Black Anodized, 7075-t6 Aluminum Barrel Nut, 6061 Extrusion, Ar Rifles, 2a-aerml Model: AethonProduct Type: HandguardFinish/Color: Hardcoat Black AnodizedFit: AR RiflesAccessories: 7075-T6 Aluminum Barrel NutDescription: 6061 Extrusion