RaceBoarder
Waiting for the Snow to fly...
Anecdote alert: when I worked at a different company, we were bringing over a bunch of British engineers from a partner company. Most of them could come over on a "tourist" (non-)visa and start working right away while the paperwork for their proper work visas went through the system. But not the one assigned to my team. He had to sit at home in the UK until his actual visa came through. Why? Because he had a firearm conviction on his record. His offense: he had a 1700's-era musket over his mantel that had been in his family for generations. It hadn't been fired in, probably literally, more than a century. When he redecorated his house, it didn't really go with the new decor, so he gave it to a friend of his. That friend got into a scrape with police (drugs, IIRC), so when they canvassed his house and asked where he got the gun, he fingered my friend, and so my engineer friend was convicted of transferring ownership of a firearm without proper documentation.
*That* is how gun laws should work.
I get that there will be issues with people that are just blatantly unaware like your co-worker. But a firearm is a firearm and needs to be treated as such. For the record, there is already procedure in place here in the us for guns made before a certain year (1899 or 1901 seems right, but off the top of my head). The sales are much more lax in these cases as many pieces are used as show pieces vs as an actual firearm.
It sucks for honest people, but they are 1 case of prosecution for a law that will likely prevent 100's of much more shady deals...