I just purchased an SKS, its Norinco and in pretty awesome condition. My main question is about the numbers. It is number matching but the number is 00090. This seems kinda low in number to me, is a low number like that common or did I stumble upon something? I went in looking for something nice and cheap and noticed it right away, it was really clean and I went straight to look for matching numbers and noticed the low number. Anyone wanna fill me in on this?