Below are the Holosun 510 Series of rifle optics. These are offered at the best price with free shipping.

The 510 Series of Holosun red & green dot sights is their open reflex rifle sights with large windows. These windows are very large and help with faster target acquisition.

All 510C series optics come with aluminum housings with a titanium protective shroud, and quick disconnect mounts. There are FDE versions and also a version that comes with Holosuns 3X aluminum magnifier and an included 1/3 co-witness spacer for extra savings.

These fun to shoot rifle optics have 50k hours of battery life, side removable batteries, are available in red or green reticles and have solar panels, shake awake, and manual/auto brightness modes.

All Holosun 510 series optics have Holosuns MRS reticle which is a 65 MOA ring and 2 MOA dot. The reticle can be toggled by holding down the "-" button for three seconds. You can use just the 2 MOA dot, just the 65 MOA circle, or both together.