The Monstrum Tactical GP17 is a lightweight vertical front grip for use with AR-15s, tactical rifles, or shotguns. 5 adjustable positions so that you can have your grip position exactly how you prefer it. It mounts beneath the barrel of any Picatinny/Weaver rail equipped rifle or shotgun, providing for well balanced barrel control and improved handle. Hollow on the inside, the grip also serves as a storage compartment accessible via the removable base. Molded from lightweight industrial polymer, it weighs only 3.5 ounces with a solid, comfortable ergonomic gripping surface. Available in Black.