Jumping in..
ifit, the 5.45 mag fed all the rounds...
On my last outing there were a lot of guns, sks,ar,golani,fal, all total about 20 guns.. My norinco performed as well if not better than most of the guns there.. I am not a sharp shooter, but was able to put a hole just off center of a 3" across 1/4" thick metal gong a 200' using wolf metal case HP.. Then my buddy says, that target is for the 22s.. oops
Anyway, the norinco is very reliable, and all the guys there shot my gun, and said it is "sweet".. I was going to try and tweak the sites, but they said, "it don't need any tweaking". So it is the way I bought it out of the box, never messed with..
I am including a pic of it, and the mag that works great from promag that I bought from centerfire for about $14...