The Primary Arms Classic Series Mini Reflex Sight now features Autolive technology. This feature turns off after sitting still and will automatically turn on at the slightest motion helping to conserve battery life. The Mini Reflex Sight is optimized for full size carry pistols or competition guns as it features a large 24x17mm lens allowing for a quick and easy sight picture all while weighing under an ounce. It utilizes the popular 507c footprint for a wide range of compatibility with milled slides and adapter plates and houses a bottom mounted CR2032 battery offering up to 40k hours of battery life on the medium setting. With 10 total illumination settings, and a daylight bright 3 MOA red dot, this reflex sight is sure to be quick to pick up and easy to use. The lens is fully multicoated for scratch and fog resistance and the 6061 Aluminum housing is extremely durable. If, you are looking for a new red dot for carry, competition, or even your rifle, you can't go wrong with the Pr...