You buy a shotgun advertised by private seller on internet auction site. Private seller is in another state and is not a ffl.

Private seller ships gun to ffl in your state along with copy of his driver's license for identification. 3 day inspection & return.

Shotgun is not as advertised. You ask your ffl to return the gun to private seller for refund.

Can your ffl legally ship the shotgun back to the private seller in another state?