Replace Firing Pin H&R Model 1900 Shotgun
I have an early production H&R Model 1900 single barrel shotgun that almost certianly has a broken firing pin spring. The firing pin retetnion screw isn't located on the top of the receiver, as in the later models, but is only accessible through the bottom of the gun and after removing the trigger and trigger guard, which are held in place by one drift pin, and the hammer, which is held by what appears to be a heavier gauge drift pin.
The trigger drift pin came out easily, but the hammer drift pin won't budge. Bot sides appear to be peened over. Can someone tell me what needs to be done to get it out. Is it normally peened over or did someone do it rather than order a new drift pin?
The gun isn't worth anything but I am keeping it as it is a hand me down and while I would like it to work it isn't worth taking to a gunsmith.