Really bummed. Opened up an old gun case with my old over and under in it and the gun is rusty where it was touching the case. There must have been some kind of reaction with the gun case material. I oiled it up the best I could for now. I can't operate the thumb control to break the gun open - something must be rusted fast. Any suggestions on how to fix it? I don't really want to reblue the whole gun, but I guess that might be necessary. I don't know who to take it to or what to do to get it fixed. Pics below. Thanks.