I have one of these pistols and the cz brand mags with the plastic spacer on the bottom work. They don't always fall free.
Open up the frame and be done with it .
This is Epps CZ mag page. If your not sure what to get phone them and ask.
https://ellwoodepps.com/catalogsear...home=0&no_cache=true&order=relevance&p=1&q=cz
I picked up a couple from trade ex , for my preB , they fit the magwell well, but the slide would not move with them in , took some very fine sand paper to the feed lips until the slide would travel across the mag freely, only took a little , work fine now .



























