The CMR-206 Rail MasterA(R) is compact, yet powerful, universal green laser sight designed to fit rail-equipped pistols, rifles and shotguns. The laser sight fits onto virtually any firearm with a modern (M1913 Picatinny or Weaver-style) accessory rail. Ambidextrous control tabs allow the user to instantly activate or deactivate the laser. The human eye processes the color green more effectively than any other color, and Crimson Trace offers the brightest green laser allowed by law, (5mW peak, 515nm, Class 3R). The CMR-206 Rail Master boasts 2 hours of (constant) run time on a single 1/3N Lithium battery, and features a 5 minute auto shut-off for power conservation. The CMR-206 Mfg: Crimson Trace Corporation