Hell, I've got probably $1000+ in my Glocks, so I understand your pain.
II
The thing with this is, just saying "serialize your guns" does absolutely nothing for traceability. Like, who's gonna know what some random engraving on my gun means for who manufactured it? The only way it helps is if I have to register it with the MSP... and I suspect that's what Dumais is trying to figure out how to make work. In other words, the end game is registration.
Now, the good news is, you wouldn't have to be on the roster (probably) as is.
I’m fine putting a useless serial # on them. I would never, in my wildest dreams hide anything from MD.