Beileshi Adjustable Green Laser Pointer Laser Sight Designator/Illuminator/Flashlight W/Weaver Mount Picatinny rail mount with windage and elevation adjustment RANGE: Laser Flashlight Range:&gt;200 yards in the night Laser Wavelength: 532nM Battery: 1 pc CR123A Length:155mm(6.1inch) MATRRIAL: High quality aluminum alloy in durable black matte finish