Vecto Optics Doublecross Green Laser Flashlight Combo Tactical Style, Full Metal, 180-200 Lumens Cree LED, Mainly for Pistol Full Size with Front Bottom Rail, Build-in Green Laser Sight, On/Off Switch and 3 Modes Green laser power: 5mW Flashlight LED brightness: 180-200 Lumens white Laser wavelength: 532nM Flashlight bulb: Cree Q5 system Three levels: laser with flashlight, laser only and flashlight only Weight (with batteries): 135g (4.76 Ounces) With integrated 21mm mount base for Weaver and Picatinny Rail Length: 85mm (3.3 inch) Full metal alloy aluminum Normal on/off switch Rain proof, shock proof Windage & elevation adjustable with supplied hex key tool Packge includes: 2 pcs of CR123 battery, allen keys