I own CZ, BRNO, and a Norinco JW15 A Backpacker. Mags are mostly interchangeable, but I'd never over commit on a CZ mag purchase for your Norinco until you've tried at least one. Tolerances aren't that consistent on these Chinese guns. Likely will work though.
I have two JW15a Backpackers, one prefers metal CZ mags and the other polymer CZ magazines.
You speak the truth 22LRGUY![]()
I know norinco polymer mags will work in a CZ,they just needed a bit of polishing with emery cloth to make them fit in,other than that they work well