The SCG uses a 5milliwatt 532 nanometer green laser to sight up to 457 meters away. The laser is controlled by two sidepositioned ONOFF buttons for left and righthanded use. Ideal for railequipped compact and subcompact pistols. It has an adjustable hinge mount design no tools required. Ideal for railequipped compact and subcompact pistols. It is made from heavyduty fiber reinforced nylon and is water and impactresistant. Includes Allen Wrench and battery.