https://www.washingtonexaminer.com/washington-secrets/atf-423-million-guns-in-america-1-2-per-person-8-1-billion-rounds-of-ammo-a-year New federal data shows that there are 422.9 million firearms in circulation, or about 1.2 guns for every person in the country. What’s more, despite yea...
My understanding is that the Martin family has been harassing him (or he perceived harassment), and that this is a way to get it to stop. A bit of money probably is a motivator I’m sure.
Without registration, they could probably track new guns from the time after a law was passed. They could do a search on the SN to see where it was sold, and find who the original purchaser was. Very tedious work, and won’t do anything for the 300+ million guns already out there.