I have been looking at red dot sights quite a bit lately. Originally, I mostly tested them on rifles, since I am more of a rifle guy. However, since my interest with red dot sights leans heavily toward the more compact ones. I like the miniature red dot sights, I figured that the best way to test them is cover both rifles and handguns.
Now, I train with handguns a fair bit, simply from the standpoint of maintaining reasonable proficiency with whatever happens to be your home defense weapon. For me, that happens to be a handgun (yes, I know that a long gun is a more effective weapon, but it is a less convenient one inside a house). However, until recently, I did not experiment much with anything beyond irons sights on them.
Well, I could not let that stand, so I over time built myself two separate Glocks with different means of attaching a red dot on them. One involved buying an Atom slide from an outfit called Unity Tactical. I saw mention of it somewhere and looked into it. The idea is very sound and I think the quality of their product is pretty good. I had a few issues since the DocterSight III I was testing ended up not working with their mount, but if they have a mounting plate for your reflex sight of choice, Atom slide works well.
Overall, despite a couple of issues I had, I like the thinking behind the Atom slide and I will likely purchase and test some of their other products, the Clutch belt being first on the list.