This keymod handguard by ARES is made with full metal construction and has a picatinny rail running along the entire top length. The top rail allows the mounting of sights and other accessories that may be needed. Using the keymod holes players can attach rail segments anywhere on the bottom and sides of the handguard. The required installation ring, screw, and bolts are included. If you are looking to improve the look and functionality of your rifle this provides an easy external upgrade.