The Streamlight TLR-6 Laser Sight with LED Tactical Light attaches securely to the rail and trigger guard of semi-auto pistols. The TLR-6 can operate its laser sight and tactical light independently or in unison, controlled by an ambidextrous button naturally positioned for the shooter's index finger. The laser sight emits a 640-660nm red laser that is easily seen, day or night. The C4 LED illuminator delivers 100 lumens out to 89 meters (292'). Streamlight's parabolic reflector shoots a trim and intense beam of light, while providing peripheral illumination. The laser sight utilizes windage and elevation adjustment screws mounted in brass bushings to ensure a long life and dependable zero retention. The Streamlight TLR-6 tactical sight/light runs on 2 CR1/3N batteries (included), and has a 10-minute auto shut off to conserve battery life. Each unit is serialized for positive identification. IPX4 water-resistant. Laser and light operate independently or in unison Ambidextrous control button 640-660nm red laser sight C4 LED illuminator Parabolic reflector Adjustable windage and elevation Includes 2 CR1/3N batteries 10-minute auto shut off