Sounds excellent then.
I always thought the receiver had to have a serial number.
“...I always thought the receiver had to have a serial number.”
True only if made by a federally licensed gun manufacturer, to be sold in general commerce, or under contract to DoD, recognized law enforcement agencies, or other approved entities.
Firearms made for personal use must comply with current limits under the National Firearms Act and subsequent legislation. They cannot be legally transferred.
All NFA-registerable devices (machine guns, sound suppressors, short-barreled rifles and shotguns, smoothbore handguns, destructive devices, and “any other weapon” regulatory agencies feel like placing on the list) must be on BATFE’s list; they may be transferred only after prior approval is granted by the agency, and payment made to the US Treasury of the applicable tax ($200.00 for machine guns, suppressors, short-barrel stuff; others have different tax rates) and the issuance of the proper tax stamp.
Violators are treated as guilty until proven innocent.