Yankee Hill Machine Co, MR7, M-LOK Handguard, Fits AR-15, 10", Anodized Finish, BlackThe MR7 is one of YHMs 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. Features : 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 UPC 841812101963 Manufacturer Yankee Hill Machine Co