You're thinking of Yugoslavia.
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Has anyone ever used the Bulgarian metal mags with the plastic follower from CDNN?
https://www.cdnnsports.com/762x39-30...1#.Xr1YMzT3bCR
https://www.cdnnsports.com/media/cat...5/b/u/bul1.jpg
Cool, give an update after to get some rounds through them.