UTG tactical pistol flashlight 23mm Xenon bulb & integrated reflector (9V bulb) Integral Weaver mount 126 lumens max output 70 mins battery operating time Shock-resistant Tail cap with ambidextrous rotary on/off switch Made of aircraft-grade aluminum Quick-release tail cap lock to access battery compartment Adjustment-free lamp Permanent or momentary on/off 5.1 oz (with batteries) 3.06" long 1-year limited warranty Used in the 2006 IPSC national competition Includes 2 CR123A batteries, spare tail cap & Allen wrench