Crimson Trace Rail Master Pro - Universal Rail Mount Laser-LED Combo Black Red Laser. These versatile Green Laser Sights from Crimson Trace are easy to install on practically any handgun or rifle equipped with Picatinny or Weaver rails. The Crimson Trace Rail Master Pro Flashlight Laser Sight features a powerful 100 Lumen white light that can be used in strobe mode to disorient your target or constant on mode for target identification. Also features patented Instant Activation and Auto Shut Off at five minutes to conserve battery life. The waterproof Crimson Trace Rail Master Laser Sight/Flashlight stands up to repeated recoil and is perfect for concealed carry or personal/home defense. Specifications for Crimson Trace Rail Master Pro Universal Rail Mount LED Laser: Manufacturer: Crimson Trace Color: Black Beam Color: Red Laser Output: 5 mW Wavelength: 532 nm Maximum Range: 50 ft Battery Type: CR2 Lithium Battery Life: 2 hours 2 hours Battery Quantity: 1 Reticle: Dot Water Resistance Level: Water Resistant Gun Model: Universal Length: 1.5 in Width: 1.25 in Height: 1.5 in Weight: 4 oz Fabric/Material: Polymer/Aluminum Combination Condition: New Light Output: 100 lumens Mount Type: Rail Features of Crimson Trace Rail Master Pro 100 Lumen Light and Laser Sight: Operates in 4 modes: Laser/Light Constant On Laser Constant On Light Constant On and Laser w/Light Dazzler. Patented Instinctive Activation system activates laser when firearm is held in the natural firing grip. Fits most modern pistols rifles and shotguns with M1913 Picatinny or Weaver Accessory Rails. 5 minute auto shut-off for power conservation. Can easily be installed and switched between firearms. Securely fastened with the Crimson Trace's Secure Lock Technology (SLT). Dual activation buttons allow the user to instantly activate or deactivate the laser. Fully adjustable for windage and elevation. Factory sighted at 50ft. Master On/Off Switch Free batteries for life. Quick user installation. 3 year full warranty. Package Contents: Crimson Trace Rail Master Pro Universal Rail Mount LED Laser Fits most pistols rifles and shotguns with M1913 Picatinny or similar Accessory Rail & 1-1/16" between the recoil lug and the trigger guard. What firearm models does the manufacturer say Crimson Trace Rail Master Pro Universal Rail Mount LED Laser is compatible with? The manufacturer suggests that Crimson Trace Rail Master Pro Universal Rail Mount LED Laser is compatible with UniversalCrimson Trace CMR-205: Rail Master Pro - Universal Rail Mount Laser-LED Combo Black Red Laser