Following the successful release of YHM S.L.K. and KR7 KeyMod handguards and in response to customer demand Yankee Hill Machine is proud to introduce our new line of M-LOK rails providing the same lightweight durability with the added versatility of the popular mounting platform. – The MR7 is one of our lightest handguards to date but you can still add accessories along the entire handguard length even at every 45 degree position. Note: This handguard features a T marked extended top rail. – Weight: 14.4 Oz. – Length: 12.6 – The Top Rail is a T-marked extended picatinny rail – Free-floating design – Hardcoat Anodized matte black to Military Specifications or better – Made from 6061-T6 aluminum – The MR7 Handguard comes with all necessary parts for installation including: – Rifle Length Keymod Handguard – Barrel Nut – Jamb Nut – Anti-Rotation Screws – Installation Instructions