Night Evolution universal Weapon Light attaches by an integral rail clamp to rifles equipped with a Picatinny rail. It utilizes one sealed LED unit to produce both brilliant white light. FITS: Rifles, carbines, or submachine guns with a forend-mounted Picatinny rail. (See our Picatinny Rail Forends).Features:-180 lumens-U.S.A Cree LED light-1hr run time-uses 2x 123A battery-110m beam distance-2 Tactical mode-Remove pressure switch-Mounting system Integral c lamp for Picatinny rails-Construction High-strength aerospace aluminum with anodizing; impact-resistant polymer-Weatherproof O-ring and gasket sealed