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. Brand: Sniper Includes: M-LOK Foregrip Materials: Aircraft Grade Aluminum Compatibility: AR-15, Rifles with bottom rail Picatinny/Weaver rail Weight: 4 oz Length: Rail Mount: 2.5 in, Handle: 4 in Storage Dimension: 3 in x 1 in Color: Black Warranty: Lifetime