They have a national registry already. Ilegally.
If BATFE illegally photocopied every Form 4473 there ever was, they would have several hundred million points of sale & nothing more. They can’t show up at my door & say, “Where’s that AK-47 you bought in October 1986!?” Doesn’t work that way. No law says I have to report sale, transfer, or even theft.
4473 is a snapshot, not a marriage certificate. If there is another way to create an illegal registry, then let’s have it. Seriously.