Viridian RFX 15 3 MOA Green Dot Sight - RMSc Footprint - Aluminum Housing

I purchased the Viridian RFX 15 3 MOA green dot for my pistol. The fit was perfect, but the green dot drifted around while I was trying to center it. I think it is because it is mounted on the slide of my pisol. I know the slide is not stationary and I think this is causing the green dot to move. I went back to my open sights. I understand now that the green dot can move because of the slide. It was not the fault of Viridian RFX 15, just my satisfaction of me trying to be more perfect. A super great product just not for what I wanted. Thanks

Used reds and greens on friends toys. Wanted green! I feel like I found a good green in the RFX15 and best price thru freedom gorilla. It is mounted and zeroed and I'm enjoying it so far!

Just mounted this on a Glock 43x MOS. I wanted a red/green dot sight that still allowed me to co-witness with the factory polymer sights. The RFX 15 with the RMSc footprint allowed me to mount it directly to my Glock without an extra mounting plate, which allows a pretty good co-witness with about 2/3 of the front sight dot visible when aligned with the rear sight.
When mounted flush, I can see a sliver of the battery exposed on each side of the slide, but that's probably more on the thin Slimline Glock slide than on the the RFX 15. Took it to the range and once sighted in, I could use the green dot to hit 2" targets at 25 yards pretty consistently. I don't have a ton of experience with red/green dot sights, but for a sight under $200 it has exceeded my expectations.
I'd give it a 5-star review, but I've only taken it to the range once and I won't endorse a product fully until it has stood the test of time.

Received the product very quickly and was free of damages

Have not had a chance to zero it yet, but it fits well and the optic are clear