BCM Direct Mount Picatinny 1913 interface system; Low-profile length for increased mobility and decreased a oesnaga factor.; The forward angle increases the rigidity of the forearm, while providing a more natural wrist angle.; Can be mounted in reverse angle to increase control when grabbing handguard and grip.; Flat sides with aggressive texture give better yaw control to the shooter during firing and non-firing manipulations.; Anchor and bolt system offers a simple robust design, while maintaining a lightweight 1.9 ounces.; Made in the U.S.A., manufactured from high quality, impact resistant polymers.