Air Venturi Pistol Red Dot Sight for Springfield Armory Hellcat Pro Adjustable windage and elevation Two brightness modes Includes Picatinny Mounting base Direct-mountable to threaded optic plate (plate is included with Hellcat Pro Air Pistol) 380 hour battery life on low brightness, 29 hours high brightness Uses 1x CR1632 battery (not included) 3.94" length Tech Note: You will need to remove the optic from the picatinny mounting base before installing it onto your Hellcat Pro Air Pistol