The SKS and AK 47 are totally different guns. Real AK-47s are assault rifles, with detachable 30 round box magazines, and pistol grips. The SKS is a semiautomatic cabine with a fixed 10 round magazine and a conventional stock. The action is also different; the AK uses rotary bolt and the SKS has a tilting bolt.
Not part is interchangeable. Both guns use the same ammo, 7.62x39. When people in this forum talk about AK-47s, they really mean semiautomatic versions of the AKM rifle, which is the improved AK-47.
Eddie Haskel's mom puts out!"