The Monstrum Tactical GPML03 is a lightweight vertical front grip for use with AR-15s, tactical rifles, or shotguns. Hollow on the inside, the grip also serves as a storage compartment accessible via the removable base. Molded from lightweight industrial aluminum, it weighs only 5 ounces with a solid, comfortable ergonomic gripping surface. Available in Black. Picatinny Version Available Here.