The wasr 3 are still out there if you don't mind the lack of threaded muzzles. They use the steel german mags that are plentiful right now. If I didn't decide to get the sam 5 I would have gotten one of them.
Barrel, bolt and carrier from a chinese rifle. OOW 5.45 receiver. Global trunnion with the little hole for the chinese barrel, funky psuedo krink gas block/front sight and a bunch of clear magazines from Kvar.
Slowly but surely.. now I need to make a rivet squeezer that will fit in that little 19mm hole...
That's probably not what you were asking about, I'm sure.