This AR-15 folding rubberized vertical foregrip for picatinny rails is ergonomically designed to be mounted on any Mil-spec 1913 picatinny rail M4 or AR15 handguard. The overmolded rubberized vertical foregrip is a lockable 3-position folding foregrip ideal for AR-15 defense weapons. The AR foregrip has non-slip rubberized texturing for perfect weapon retention and control under rapid fire. The vertical foregrip can be folded and locked into a 90° vertical, 45° angled, or 180° horizontal position. The foldable vertical grip is made of rubberized overmolded high-quality reinforced polymer. This vertical foregrip is perfect for your AR-15, M16, or M4 rifle. It comes in swat black and can be used on any rifle or shotgun with a weaver or picatinny rail. All mounting hardware is included. 4.4"L X 1.8"W X 1.4"D.