My understanding is ATF wants some sort of documentation that the lower was bought before 7/20. The shop I picked it up at is no longer in business. There was no fa-10 done at the shop and if they gave me a receipt nfw Ill be able to find it. I fa-10'd when it was a completed rifle, but cant seem to find the print out of it. Any way to proceed without inviting the man into my life any more than necessary?