This EOTech Sight features a heads up design that allows both eyes to be open in order to maintain peripheral vision and depth perception while shooting. It features a sleek, low profile design that points naturally. The reticle provides fast target acquisition and precise aiming options. Features an integral Weaver-style base, uses AA batteries and runs for 600 hours on alkaline or 1100 hours on lithium. EOTech Sights are covered under a 2 year factory warranty.