Apparently the underside of the slides are different. Some have been milled out by the factory and some are solid. If you have one that's milled out there isn't enough meat to mount an mrds. Take it with a grain of salt as I have no personal experience. The internet told me.
check the classifieds. Just sayin’.
My JMCK AIWB 2.5 (I think) fits both PX4C and FS perfectly.
It might be worth asking John at Philster if his Spotlight is compatible with guns that require a key to mount a WML.
David S.
Check for plates and sight availability. Looks like for the factory P10 OR, they don't have RMR plates or high sights available.
For a CZ, I might go with Primary Machine and have them mill the Trijicon 1911 RMR mount. It seems to be the only way to get iron sights on a CZ 75/85.
http://primarymachine.com/cz-75-85-1...-1911-adaptor/
Just looking around the interwebs I haven’t seen too many P30s direct milled. Most seem to use an adapter plate. I do know that John Correia of Active Self Protection has one that’s direct milled. It was done by a Wright Armory in Mesa, AZ. Might contact them directly for deets.
David S.
L&M Precision was the option I was looking at back when I had HKs. Ultimately switched to an optics-ready gun, however.
I just received a 43X from him and it uses the same basic technique (mill for an adapter to get a mounting surface wide enough for an RMR) and the work is superb. Lead time was right at 4 weeks and the communication was great.