532nm Tactical Green Laser Sight Hunting Rifle Dot Scope with On/off Swith Picatinny/weaver Mounts + Barrel Mount Tube Diameter: 1'' Laser Wavelength: 532nm Adjustable windage and evelation Emits a highly visible intense green laser beam constantly Provide clear pionting dot even in day light and clear laser beam in the dark or low light Includes: 1-inch picatinny rail ring with removable cross-bar, on/off cap, momentary on/off long cable switch