It's also worth pointing out you can already buy all of the components necessary to assemble your own firearm, all without a serial number Not exactly true. Ev

It's also worth pointing out you can already buy all of the components necessary to assemble your own firearm, all without a serial number Not exactly true. Every legal gun has one part with a serial number that defines the gun legally. Usually (always?) it's the receiver. There are some grey areas where you can get an almost finished receiver free of regulation.