My eyes aren't as good as they once were, so I have been transitioning to red dot sights more and more. I actually transformed my Glock into an Open gun and started off with a Burris Fastfire III on it. As much as I practiced, I often could not find the dot on my draw or I would lose the dot transitioning or from recoil (4 MOA may have been the cause). Nothing against the Burris, I mounted it on my S&W .22a and LOVE IT! I put this Cmore on my Glock-what a difference! Much easier to pick up, and the 8 MOA dot was much better for USPSA matches. I seriously like the rotary switch to control brightness, I have had bad experiences with sights that automatically adjust to lighting conditions. It's easy to reach and adjust by feel, good strong clicks. The glass is large, and makes for a good field of view when transitioning. I shot the USPSA Fla State match earlier this year and had a ball. The sight did great, the shooter, well...