Trouble is when you buy from a pawn shop it's pretty much what you see is what you get. You should have seen the electric tape inside the forend. That having been said, I'm supposed to be a gunsmith, able to fix screwed up stuff. Tim, you might want to comment on this idea. In the good old days we used to tighten up a loose single barrel shotgun by replacing the hinge pin. You knock out the old one, clamp the barrel in place, then use a tapered reamer to clean the hole. The replacement pin is tapered like the reamer, approximately .015/inch. Determine the required length, cut and dress suitably, and drive into place. Cold blue the bare ends. Reaming the hole with the barrel clamped in place assures that the lug matches. I still have the required equipment and ready made pins. Only thing is that you wouldn't be able to switch barrels, no matter to me. Idle speculation makes me wonder of the slight taper of the pin would have any effect on accuracy, it would be locked up solidly. Anyway, that's what I'm thinking about doing instead of a shim, altho a .004" shim does work. Then I need to fix up what they did to the forend. GW