Question for the experts here on the Forum. I just bought a firearm that I am planning to immediately SBR. I have paid for the gun and am just waiting for it to be shipped to me. I am in contact with the manufacturer and have access to all the details regarding the firearm. My question is this: is it required by law for me to take possession of the firearm before I can e-file a Form 1? I know we are talking a week or two difference and thus I'm not terribly worried about it but the question is more out of curiosity than anything. Anybody have any insight?