I have a model 85 snubbie which has a little rattle. Figured out that the firing pin block ( guess that what it's called ) is rattling. I can hear it when I shake the gun, both when cocked or uncocked. It seems to be in place when uncocked. It shoots just fine. I'm not the original owner. Is this something that should be taken care of right away? Will it get worse and possibly break? Any help is appreciated.