Ade Advanced Optics Tactical Green Laser Sight with 200 lm LED Flashlight & Built in RIS Rail Mounts This laser offers the brightest green laser allowed by Law, non-handheld class 3R laser product, &lt; 5Mw power output. Meets FDA safety standards with adjustable windage and elevation Three different target acquisition methods: 200 lumen Flashlight, laser, and Flashlight and laser together. Easy toggle switches Light weight aircraft grade aluminum and solid steel construction Operates with 2x CR123 battery(included) Designed to quickly attach/Detach from standard size handgun/rifle with Weaver/Picatinny rails