NcStar Green  Class IIIA Laser with Max Output of &lt;5mw Comes with weaver style Mount Model APRLSG Green Laser: Freq - 532nm, Class IIIa Laser Weaver style clamp on mount will fit most weaver & Picatinny type rails; Includes mounting tool Fully Adjustable for Windage and Elevation; Includes adjustment tool Momentary End Cap Switch and it also comes with Remote Pressure Switch Class IIIA Laser Product, &lt;5mW power output Laser scope offers simple, effective way to improve firing accuracy Features solid lightweight aluminum construction and specially-designed, Weaver-style mount Operated by simple and easily accessible momentary and constant on/off cap switch, and coil pressure switch 532nm green laser beam (&lt;5mw), powered by included CR123A lithium battery; 5.1-ounce weight Includes limited lifetime manufacturer's warranty