Crimson Trace CMR-208 Universal Rail Mounted HL High Lumen Rail-Mounted Tactical Light allows you to experience the power that increased illumination can provide to your defensive firearm. Introducing the CMR-208 Rail Master Universal Tactical Light for rail-equipped firearms; a best-in-class tactical light from the brand that you trust for personal protection optics. With a 420 (high) or 110 (low) Lumen LED white light for maximum illumination. Instant Activation Tap On/Tap Off switch. Waterproof and Impact Resistant up to 1 meter. Mounts directly to most pistols, rifles, and shotguns with M1913 Picatinny (or similar) accessory rail measuring at least 1" from recoil lug to trigger guard including Glocks, Smith & Wesson, Ruger and other rails due to Universal fitting. Includes one (1) year warranty and Free Batteries for Life. With the Crimson Trace CMR-208 Rail Master Series What you see is what you HIT.