Isn't that dictated by caliber, the 5.56x45 is stanag and the 7.62x39 trad.
Do you have a link? I didn't think they came in 5.56 AK pattern mags.
Okay that's pretty sexy, I gotta admit.The RnL 5.56 guns were a limited run, like IWI's first-gen 5.45 ACEs.
OP, your decision should be based on what type(s) of mags you have and how many you're invested in, as well as how many more mags you think you'll need and how easy they are to come by. Personally I'd go with the RnL version because it's more authentic to original Galils, but be aware that those mags are not as simple or affordable as PMAGs.
Also, I 100% misread your username...