The HS512C is an enclosed reflex optical sight designed rifle and carbine applications. Features include aluminum housing, Holosun's Super LED with up to 50k hours battery life; 10 daylight & 2 night vision brightness settings; 2 MOA Dot/65 MOA circle; parallax free and unlimited eye relief; solar failsafe and shake awake. Includes Absolute Co-witness mount, lens cloth, CR2032 battery, T10 L Key and user manual.