I bought a 4-pack of 30-round steel mags from Atlantic Firearms a few days ago. They arrived today. They were filthy but thoroughly protected from rust and corrosion.
I cleaned them. I actually took them apart and soaked them in dish soap (Dawn) and hot water, then scrubbed them, then let them air dry. I then gave them a coat of oil and put them back together.
All four fit in my SAM7 (they fit very snug but not as tight as the PMAG it came with). All four also fit in my AK63, although loosely (I don’t mind — as long as they don’t come out).
I still have to test them at the range, though.
I’ve the other set of Croatian mags arriving tomorrow. I’ll have to scrub them down as well, but I may save that for this weekend. I’ll test fit them to the SAM7 tomorrow, though. I hear these mags can be problematic when it comes to fitment. We’ll see. If they are, I’ll just file them a bit.