BCM QRF-10-556-BLK QUAD RAIL 10IN BLK

BCM free float Quad Rail eliminates loads from barrel, reducing the deflection for more accurate shooting. Precision machined aerospace 6061-T6 aluminum alloy, for high strength and lightweight with a proprietary engineered profile offers additional cross sectional strength. Features a steel barrel nut to resist movement under heat. Diameter inside is 1.30, outside 2.12. Includes four QD Sing Swivel Sockets and mounting hardware.