I few years ago a bought a K98k. I took it apart, cleaned it played around with it to learn all the mechanics of it. While cleaning it I noticed the safety switch is stuck. At the time I said I was going to fix it but I got busy with other things so I hung the gun on the wall and forgot about it. Now I'm getting back into historic guns again so I pulled the K98k off the wall and started to play with the safety. Again its still stuck in the firing position. It will not move to the center or far right position. I don't know what to do. Am I missing something here, is something broken? I would like to take this gun to the range to shoot but first I have to get the safety working then have the head space checked. The gun is a K98k marked 1940 on the receiver. The manufacturing markings are pretty warn down and I can't really make it out.