Konus Sight-Pro Atomic 2.0 revolutionary design makes it one of the smallest traditional dot sights. This rugged scope can handle shotguns and magnum revolvers, but can be used on rimfires rifles and has become a popular scope for AR rifles. It can even be used with archery equipment. The 4 MOA dot can be illuminated in both red and green. In order to accommodate all lighting conditions, you can dial up to 5 intensities for each color. It also has dual mount capabilities, so it can fit on a Picatinny rail, standard Weaver style base, .22. and 3/8" grooved receivers. Includes lens cover and CR2032 battery.