I have had this carbine for almost 3 weeks. So far it has been fed steel, butI will handload for it as well. I also own a Mini 14 and have a couple of 20 round factory mags for it so I decided to try them. What I found was that as long as I didn't load more than 15-16 rounds the mags handled the AK rounds just fine. I suspect other shooters had the same experience before me. Of course, YMMV grasshopper.