I have a Navy Arms o/u 12 gauge. Bought probably 30 plus years ago, new.
Keeps bending the firing pin on the lower tube because it won't retract all the way when opening after firing.
Gunsmith said the machine work inside was really rough. He tried cleaning it up, replacing the firing pin twice. Still does it.
Probably have it replaced once more, then stow it in the gun cabinet.
