I would also recommend ATEI. They milled my M&P 2.0 compact for a rmr. Everything 30cal slut mentions is true. It's faster on target, low light-no light & easy to use when your eyes get old. (the reason I got one). There is a learning curve after years of conditioning yourself to get on the irons but it's a quick curve. Most folks have trouble finding the dot at first but with practicing the proper presentation, it becomes automatic. (just like the irons but faster). Also, shooting accurately at distance is much easier with the dot.
I would strongly recommend getting suppressor height sights to go with it. You have buis on your rifle right? Why not your pistols?