Crimson Trace Rail Master Modular Tactical Laser Green Beam Black. The MTL can be mounted almost anywhere freeing up valuable rail space for other accessories like a weapon light. It comes complete with Pic Rail and M-LOK adapters. The remote switch has tactile ON/OFF and Momentary ON functions. Backed by the Crimson Trace Crimson Protect limited lifetime warranty this laser sight is a must have for your self defense weapon. Specifications for Crimson Trace Rail Master Modular Tactical Laser: Manufacturer: Crimson Trace Color: Black Beam Color: Green Laser Output: 5 mW Attachment Type: Picatinny Battery Type: 1 x 1/3N Lithium Battery Life: 2 hours Water Resistance Level: Water Resistant Weight: 0.02 lb Fabric/Material: Aluminum Mount Type: M-LOK Adjustability: Adjustable Features of Crimson Trace Rail Master Modular Tactical Laser 6 Remote Cable Switch On/Off Switch with momentary On/Off function M-LOK and pic rail adapters Green laser sight for easy day and night visibility Adjustable windage elevation Aircraft aluminum construction LED ON/OFF indicator Package Contents: Crimson Trace Rail Master Modular Tactical Laser Crimson Trace 01-3000193: Rail Master Modular Tactical Laser Green Beam Black