The 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 railFree-floating designHardcoat Anodized matte black to Military Specifications or betterMade from 6061-T6 aluminum