Marksman- The best laser-light combo in the world! The PowerTac Marksman is a compact, integrated tactical LED Flashlight and Green Laser designed for most picatinny rail equipped handguns. It features a high-intensity CREE 550 lumen white flashlight that allows shooters to brightly illuminate their target up to 149 meters and a visible 5mW green aiming laser light to help ensure accurate fire when under stress. Ambidextrous operation for both right and left-handed shooters – allows user to select between LED flashlight only, laser only or both flashlight and laser with momentary and constant selector slide switch. Accuracy of the green laser is adjustable for fine-tuning windage and elevation. Features a wide operational temperature range from -40 to +122 degrees Fahrenheit (-40 to +50 Celsius). Battery replacement is easy through front of unit – no need to remove from gun mount or readjust laser sights. Uses (1) RCR123A or (1) CR123A lithium-ion battery. The PowerTac Marksman is engineered using the latest cutting-edge technology and finest quality components; manufactured with exceptional craftsmanship and solid reliability – comes with a no-hassle lifetime warranty.