I just got two of these in. I replaced the RMR on one of my CZ P-09's with one. Undecided what I'll do with the other.
Initial impressions:
-I'm glad the BUIS I was using with the RMR will still work with the 407c
-The window seems just a bit taller than the RMR, which is exactly what I want. It's certainly not a true gamer optic, but seems like a good hybrid option.
-I really wish they offered a 5 or 6 MOA option. I like big dots and I cannot lie.
-Moving between different moderately low to low lighting conditions, the AUTO function is always lower than I prefer.
-Best I can tell, you cannot manually override the AUTO mode's brightness choice. Need to change brightness setting right now? Too bad. You have to take the several seconds to select it to MANUAL mode.
Unrelated to the optic itself: Apparently Cajun Gun Works didn't mill front bosses when they did my RMR cut. I bought the gun used with the RMR already installed, so this is news to me. The cut also appears unfinished so there was a bit of very mild surface rust. I'd look elsewhere for optics cuts.