I have that with a vortex, can't remember if I have a viper or venom on it. I would look but it is in the safe right now. I am happy with it, last time at the range had a 5 shot group at 10 yards really surprised myself.
I have the G19 with an RMR. I had a Vortex on my 34 but I didn't care for the Venom that much. It was not like it would turn on automatically when I picked it up. It would turn off automatically after 15 hours and the battery life is shorter than an RMR.
Both MOS GLOCKS have an RMR, Dual Illumination.
I use a G-Code Holster. Works great with the optic cut out.
I have suppressor height Tritium Trijicon sights for back up. The system works extremely well. I don't use the RMR at less than 15 yards.
With a reflex sight, precision, repeatability and faster target acquisition are the results.
I'm much more consistent with an RMR over a Vortex. YMMV
Other changes I made, include the extended Slide release, Overwatch Precision Trigger and bar, and Ghost triggers Ultimate 3.5.
I have a gen 5 g19 mos. I can not adjust it high enough. Guess I need a shim?I'm thinking about picking up a Glock 19 MOS (factory cut). Also has a Vortex venom red dot. Anyone have feedback after having this setup? Good, bad, etc. Thanks