I have never had any mag issues with my AKs. My Chinese were new when I bought them. My Hungarians were "surplus", but they looked new. The I think I have an East German. I think I have a Russian.
So far no issues. I do have some rust on a couple mags but they were wet for several days.
One day, I shall come back. Yes, I shall come back. Until then, there must be no regrets, no tears, no anxieties. Just go forward in all your beliefs and prove to me that I am not mistaken in mine.