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