Bootleg Inc. is proud to announce their new line of handguards featuring the Cam-Lok attachment method. The Bootleg Inc. Cam-Lok handguard features an easy to install, no timing necessary, barrel nut as well as a full length top picatinny rail. The Cam-Lok handguard is M-Lok compatible and made of 6061 Aluminum with a Mil-Spec anodizing. Interior diameter is 1.385" and every handguard is backed by Bootleg Inc.'s lifetime warranty.Weight: 15" - 14.45 oz 13.4" - 13.5 oz 9" - 11.2 oz 7" - 9.95 oz