I'm a LEO. I've been carrying this mini red dot sight (MRDS) mounted on a Glock 22 for about a year now. I work nights. I carry it in a Safariland 6280 holster, which I had to modify with my dremel tool to get the gun to fit with the MRDS mounted. I tried a Burris fast fire II before this. I wasn't impressed with it. This MRDS is much better than the Burris in several ways; the auto-brightness feature is much better/dialed in better, the power switch is located in a much better spot, and it's very simple to change the battery with the convenient battery tray. The power switch on the Burris would get inadvertently turned off when charging/racking the slide during reloads/press checks. Hands down, the C-more STS is the best bang for your buck in the MRDS department.
Pros: power switch, auto setting, size, durability, battery tray
Cons: price
This review was written in the old system and had content requirements that are different than reviews written today.