The Tapco duckbill mags are sturdy and reliable in my experience. I have had problems with the couple of generic metal ones I have tried (but that was also before I got used to it, so there's that). I am not a fan of pistol grips, so I went SKS (plus the price difference was quite a bit more a few years ago...got mine for ~$260 about 4 years ago) instead of an AK.