The rad (rapid aiming dot) and rad pro electronic sights are compact open reflex sights for full size pistols.Featuring a 3 moa round aiming dot, the rad will elevate your pistol's performance instantly.Easily user-installed by utilizing an industry standard mounting interface, they boast a high efficiency led for years of use.Run time 20,000 hrs.Auto/manual shutoff.Includes cr1632 battery.Battery: CR2016 LithiumMagnification: 1xDot Size: 3 MOAFinish: Matte BlackReticle: Red DotProofs: Dust/Fog/Impact/Recoil/Shock ResistantWindage Elevation: Adjustable