The HS510C FDE is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs and shotguns due its durable design. Featuring aluminum housing with titanium hood for added shock resilience; Solar Failsafe; Shake Awake; MRS (Multi-Reticle System); Red Super LED with up to 50k hour battery life; 10 daylight and 2 night vision settings. Includes a QD absolute co-witness mount, CR2032 battery, T10 L key, lens cloth and manual.