Excellent optic - Holosun OPMOD HS510C 1x30mm Reflex Red Dot Sight

I previously purchased a number of optics from other companies due to my astigmatism. Mine is very strong on both eyes and the only optics that work are the ones with the red dot etched on the glass such as the primary arms raptor. My requirements were a large viewing window, strong construction and light weight. This holosun exceeded all my expectations. The grey color is also cool and beats the same boring black and brown options. Regarding astigmatism, the dot has 3 viewing options that effect the sharpness of the dot. The red dot by itself is about a 7 out of 10 in sharpness due to mild fuzziness and starburst. The red dot with the 65 MOA ring option is about a 9 out of 10 in sharpness with little fuzziness. The 65 MOA by itself option is about a 9.5 in sharpness minimal fuzziness. Also the large shooting window makes it easy to aim with both eyes open if preferred. I mounted this optic on a 300 blk and it holds zero with no problem, I have used green dots in the past to compare to the red dots in sharpness, and I personally see little difference in sharpness. This HS510C is awesome due to the large viewing widow, shake and wake, lightweight, and great for shooters with astigmatism.