3 7/8" overall. 4 MOA dot is the ideal size for most shooters. High quality optics with fully-multi-coating on every surface. 11 brightness settings for various shooting conditions. Uses one CR2032 battery which provides 72 hours of continuous use. PentaBright Technology gives a sharp, clear image. Parallax-free for accurate target acquisition. Features an integral mount that is designed for ease of use with any standard Weaver base or 3/8" base.
