I would go with a 58, they were designed to shoot x39 and their mags work properly with it. When we win the battle to run our magazines at standard capacity as they were designed to do you will find out why Rock River Arms designed the AR lower that takes AK mags.
The straight AR mag feeds the tapered x39 like crap once you have more than 8-10 rounds in the mag. Ya ya a few guys on here are going to jump in and say that their pistol mags feed fine. When we win the battle and can remove the rivet in our 20 and 30 round mags those pistol mags will be tossed in a box and forgotten about and everyone will be on here asking why their guns are jamming.
I personally would never run corrosive ammo through a $2000+ rifle, it's such a pain in the arse to clean afterward that to me it just isn't worth it. Hot soap and water as soon as you get home? Some days I don't have time to clean my rifles as soon as I get home and I've seen first hand what corrosive ammo can do to a neglected SKS. It took me 3 hours to get my buddy's rifle working for him after he put it away dirty.
This is the same of course whichever rifle you buy but I'd rather risk an $800 investment over a $2000+ investment.
Your choice but to me red rifles are for x39 and black rifles are for 5.56 (and 300BLK

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