Built to provide shooters with an extra-wide sight picture, the Holosun HS510C Solar Open Reflex Circle Dot Sight provides users with an easy aiming system, thanks to the simple aiming point overlaid on a single plane. Constructed using a shock-resistant hood that's reinforced with titanium, the Holosun HS510C Solar Open Reflex Circle Dot Sight provides unlimited eye relief and is parallax-free, ensuring that you can get on target quickly and easily. The light is powered through an internal battery and an externally located solar panel, providing a running optic in any environment. Adjustment value: 1/2 MOA Features 12 brightness settings 50,000-hour battery l Mfg: Holosun