I could use some help, or rather my friend could use some help, he recently purchased a AR with a 7.62x39 upper and we cant for the life of us find any magazines that really work for it, yes normal AR15 .223 mags work for about 4-6 rounds but this really isnt ideal for a rifle, and we just cant seem to find anywhere that has magazines that are made for the 7.62x39 rounds, does anyone else have this problem and if so what is the solution or is there magazines out there that are designed to work. Any help would be much appreciated.