The Crimson Trace CMR-201 Rail Master Red Laser is a powerful and versatile laser sight designed to fit rail-equipped pistols, rifles and shotguns. The Rail Master locks onto Picatinny M1913 or Weaver-style accessory rails with Crimson Trace's Secure-Lock Technology. Once locked on, it will not move under recoil or handling. The universal design of the Rail Master offers quick Instant Activation by simply tapping on and tapping off from either side with the ambidextrous activation control tabs. Additionally, the CMR-201 features a 5 minute auto-shut off feature that will power down the unit to conserve battery life if the laser sight is unintentionally activated. Versatile and flexible, the CMR-201 laser sight includes four (4) different inserts to adapt to various firearm platforms. The unit features a powerful 5mW red laser that will run for over four (4) hours on a single 1/3N Lithium battery. Rail Master is factory sighted at 50 ft, but is fully user adjustable for windage and elevation.

• Fits most pistols, rifles, and shotguns with M1913 Picatinny or similar Accessory Rail & 1-1/16 in between the recoil lug and the trigger guard
• Powerful Red Laser: Features a 5mW peak, 620-670nm, Class 3R visible red laser, the brightest beam allowed by law
• Instant Activation: Ambidextrous Tap-On / Tap-Off Controls for immediate laser activation from either side of the unit
• Over Four Hours of Battery Life: Powered by one 1/3N Battery (included); Eligible for Crimson Traces Free Batteries For Life Program
• User installed- no gunsmithing required; Four fit inserts are included for specific firearm fit.
• Finish Polymer Housing
• Factory sighted at 50 feet, but is fully user adjustable for Windage and Elevation with provided tool; Wrench Size - 0.05