The Vism vertical forend grip features a ultra-bright 200 lumen flashlight and 5mW red laser. The grip attaches to picatinny-style rails giving you a solid grip to increase your effectiveness in adverse situations. The grip also features a spare battery compartment and the batteries can be changed rapidly without removal from the weapon. The Vism vertical grip also features constant on mode as well as selective activation to conserve battery. Covered by a limited lifetime factory warranty. Notes:Quick disconnect picatinny-style mountCR123 Lithium batteries included (2)Adjustment tools and hardware included