The NcStar Tactical Red Pistol Laser mounts to any weaver style rail and provides a super fast aiming point. The quick release weaver mount and side to side toggle on/off switch ensure the laser will work for many handguns and shooters. FeaturesRed Laser: Freq. 635-655nm, Class IIIa LaserWeaver style mount will fit most weaver & Picatinny type railsFully Adjustable for Windage and ElevationSide to Side Toggle On/Off SwitchIncludes mounting tools