From Holosun: “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.”
Here at Atlas Gunworks, we believe that the Holosun sights are the next big thing because of their really big window and extremely crisp dot. We are proud to offer the Holosun HS510C for retail sale, and will soon be offering them as an option on our open division pistols, as well as for sale with our frame mount designed specifically for this sight!