This AR-15 tactical stubby vertical forend foregrip made is from high strength polymer with anti-slip grip, length is 3" long perfect for M4, AR15 rifles and carbines. This Picatinny short vertical grip is compatible with weaver/picatinny Mil-spec 1913 rails. This stubby vertcal grip helps diminishing muzzle climb during burst-fire sequences to simply offering a more comfortable compact shooting stance.