BSA Optics LS-532 532nm Green Laser Sight provides a bright green laser beam for quick and precise target acquisition perfect for informal target shooting such as plinking. The BSA Optics Laser Sight features windage/elevation adjustments and has a 100 yard night range (50 yard indoor range). The Green Laser Sight - 532nm by BSA Optics includes a momentary pressure switch for push button ease activation, a hex wrench set along with (3) 1.5V LR44 batteries. Specifications: Tube Diameter: 18.9mm Visible Range; 50 Yards Visible Range: 100 Yards (Outdoor/ Evening) Dot Size: 11.3mm at 10 Yards Windage/Elevation Adjustments Color: Black Matte Finish Includes: (3) - 1.5V LR44 batteries Hex wrench set 3/8" and 5/8" Rail Mount