Superb mount - OpticsPlanet Exclusive American Defense Manufacturing Holosun 510C Quick Detach Mount

Most importantly, this mount, as a mount, is vastly improved over the holosun QD that's included with the 510c. It has a much larger clamp that you can cinch down tight... unlike the holosun. The return-to-zero is also much improved. The other reviewer who states that the mount isn't cut to match the original is correct. When you have the riser plate installed you see what he means. There is no "cutout" in the ADM mount to match the riser. This I don't care about. What I DO care about is the fact that they DO NOT include screws needed if you have the 1/3 riser plate installed. The hole pattern on the ADM doesn't match the original and you need to have longer screws with the way this is designed. I don't think ADM ever looked at the riser plate.