In addition to this, many dealers dont know the law on a number of things. Some insist that a dealer send them an FFL when selling them a gun. The buying dealer is required by law to supply an FFL to the selling dealer . But many insist on it.
On the other hand I have ahd several dealers try to buy actions form me and didnt want to provide an FFL because they said it wasnt a gun. The serial numbered component is the firearm.
Dealer ignorance can only be topped by UPS ignorance of the Federal laws.
And I am a dealer!!