Just wait till fncceo comes busting down your door in complete ignorance of the law.Having possession of a firearm with no serial number is already illegal. If it's made of plastic, glass, steel, or uranium.
As of late, there has been a 80% or 60% receiver complete craze. In these particular cases, the gun cannot be sold or transferred and must only be for the manufacturer’s own personal use. If it is a home build manufactured by yourself, using your own equipment, for your own personal use, no serial number is required.
https://www.pennlago.com
https://www.pennlago.com