UTG Deluxe Tactical Red Laser Sight, Weaver/Picatinny Mount, Remote Pressure Switch UTG red laser Push-button on/off switch and remote pressure switch Windage and elevation adjustments Class 3R laser 2.5-3.1mW output 630-640nm wavelength 15-20mm beam dia. @ 15 meters 14 deg. F to 113 deg. F operating temperature 80 mins. of battery operating time 500 meters laser range 6000 hrs laser lifetime .8 oz. w/batteries 2.4 oz. w/batteries, tail cap assembly .55" dia. body 2.64" long Incl. Weaver/Picatinny mount, button batteries, screwdriver, hex wrench & pressure switch