Detachable mags generally don't work very well with the SKS except for the chinese models specifically designed to take detachable mags. Trying to make an SKS into a "poor man's" AK is like trying to turn a mini-14 into an AR. In the end you generally spend more and still have something that doesn't work quite as well. My yugos were all terribly front heavy with creepy triggers. There is simply no way to make them balance and handle like an AK. They were neat pieces of history and worked very well with the fixed 10 rnd magazine, but in the end I gave one to a buddy and sold the other to finance a real AK.