At least they’re including an exception for licensed gun smiths. But then this makes me wonder. Could a design shop simply print their “serial number” on a metal unit that meets the “undetectable firearm” requirement. And be legitimate?
So basically, you buy the design, and the “receiver”. Which is merely a metal block with the serial number. You print your gun. It now has the serial number, and the metal block to facilitate detection via metal detectors.
And then you have legally met the requirements. Seems like this legislation is total FAIL.