This country is awash in cheap uzi mags. They were $35 a piece when I bought my uzi 20 years ago.
I actually like the 25-rd mags. I split a 50 mag box of the "rusty" 32-rd mags from RTG. Only a couple even had any rust on it. They were nice for what we paid for them. There's no reason to buy anything but surplus mags. Some of the best mags made.
The best ones were the surplus German mags like 10 years ago
The uzi pro mags work, so I’ve read