Came across it recently cleaning up some stuff in the shop storage. I've never seen a Chinese mag like this one, Soviet? Bulgarian? Still has the grease in it, looks unused.
No markings and it is ridged, but the top where the feed lips are located is not the heavy machined steel chunk you normally see. It looks more like it is pressed into shape from the side wall.
Cool. Appreciate it. Guess I'll clean it up and start using it. I am about to list a bunch of mags on here, some AR-15, Mini-14, a few AK-47 and general extras that have been collecting dust in the "warehouse".