I've been working on my Lyman flintlock for a few weeks now, and finally got the barrel and lock to fit correctly. I had no idea how much work a kit gun would be The steel on the barrel now needs to be polished. The barrel has a bunch of words stamped on the top of the barrel in big bold letters that tell of the name of the gun and manufacturer. I think these are incredibly ugly and intrusive. The serial number is stamped in smaller numbers among these. In finishing the barrel, I want to remove all of these stampings but wonder if it is illegal to obliterate the serial number. Can I remove these stampings along with the serial number and engrave the serial number back on the barrel? Are muzzleloaders required to have serial numbers?