I just purchased an SKS at a gunshow and the show required the chamber to be plastic tied closed or open. I was not able to do a fully inspect it because the chamber was tied shut. When I opened it up the bolt was not there. I went back down, found the guy that sold it to me and he said he would send one to me. Does it need to be a Russian bolt for a Russian gun? Which one would work the best in a Russian made SKS, Yugo? Does it matter that the serial numbers will not match? I really wanted the manufacturing quality that the Russian SKS's are supposed to have, but sometimes bad things happen. I may just return it and take my business elsewhere.