The human eye processes green more effectively than any other color, and the Crimson TraceA(R) CMR-206 Rail MasterA(R) delivers the brightest green laser allowed by law. That means you get a big, bright aiming point for ultra-fast targeting, day or night. Secure Locking Technology makes for fast, secure mounting on pistols, rifles and shotguns, and once locked into place, it won't move under recoil OR handling-so point of aim stays the same. Ambidextrous control tabs allow the user to instantly activate or deactivate the laser from any position. Brightest green laser allowed by law Fits M1913 Picatinny or Weaver-style rails Secure Locking Technology keeps the Laser firmly in place under recoil and handling 2 hours of constant run time on (1) 1/3N lithium battery 3 modes: momentary, strobe, and constant-on Ambidextrous control tabs for easy activation 5-minute auto-shutoff Factory sighted at 50 yds. Order today!