Hello all, I've managed to get an 1100 that was made in the early 70s and it appears to be lightly used. It does have some ding marks on the trigger guard. My issue is that when pulling the trigger back and to the right it will completely lock it up, but if I pull back and to the left it will release the firing pin as expected. Any ideas at what I should be looking for when I disassemble it? Anyone else have this problem?