The laser/flashlight combo by Barska features a 200 lumen intense bright light and 5mW high power green laser sight integrated into one compact unit with a built-in quick release weaver/picatinny mount. Multiple function modes allow you to use just the flashlight, just the laser or both at the same time. The laser features windage and elevation adjustments for precision targeting. Includes two CR123A batteries. Designed to quickly attach/ detach from standard size handgun/rifle with weaver/picatinny rails. Three different target acquisition methods: flashlight, laser, and flashlight and laser together. Compact and lightweight, the green laser is 3.3 inches in length and red laser is 3.75 inches. Run time for flashlight-only is 2 hours, run time of only using the laser 7 hours. Comes with red or green laser.