Bowden's ar15 direct mount mlok micro hand stop is american-made.American sourced 6061 aluminum.Hard coat black anodized finish.Perfect application for ar pistols.Reversible-use in either direction.Prevents your hand from entering the blast zone on shorter barrels.No additional picatinny section required for direct mount.Slim, lightweight design.5/8 wide; 1 tall; 1 long.Includes hardware for mounting.Model: AR-ChitecFinish: Black Hardcoat AnodizedMaterial: 6061-T6 Aluminum