Fully multi-coated lenses that are anti-reflective and fog resistant; Rated at IP67 for water resistance; Top mounted buttons make it easy to cycle through all 10 brightness levels; Comes with a rugged and lightweight QD mount with an adjustable tension lever; Durable aluminum housing with black anodized finish; Optimized for full size carry pistols or competition guns; Features a large 24x17mm lens allowing for a quick and easy sight picture; Utilizes the popular 507c footprint for a wide range of compatibility with milled slides and adapter plates; Houses a bottom mounted CR2032 battery offering up to 40k hours of battery life on the medium setting; Sure to be quick to pick up and easy to use