Holosun HS510C Reflex Red Dot Sight (2 MOA Dot, 65 MOA Circle) - HS510C

The HS510C Open Reflex Circle Dot Sight has an open frame for a wide sight picture. It is powered by solar cell under normal usage, and a back-up battery to supplement power requirements in low light conditions. The reticle can be switched between a 65 MOA circle with 2 MOA dot, a 2 MOA dot only, or a 65 MOA ring only at the push of a button. Better yet, the same LED projects both reticles, so no re-zeroing is necessary. Holosun 510C Reticle   Brand HOLOSUN Color Black Style Reflex Red Dot Sight for Longer Barrels HS510C 2 MOA Dot, 65 MOA Circle Item Dimensions LxWxH 4.75 x 3.62 x 3.12 inches Sport Type Hunting Item Weight 8.3 Ounces Material Aluminum Objective Lens Diameter 30 Millimeters Night vision No     About this item SOLAR FAILSAFE: Holosun's Solar Power Failsafe Technology allows the red dot sight to remain reliably powered if your battery ever fails in a critical situation. The battery life can last up to 50,000 hours depending on settings. AUTOMATIC