The current Universal Background Check bills, both in Congress and various state legislatures, require that with few exceptions ALL FIREARMS TRANSFERS MUST BE MADE THROUGH AN FFL!
All firearms transfers made through an FFL must be logged in the dealer's "bound book," and a 4473 form be filled out by the dealer and buyer. The bound book contains information about both the seller and buyer, as well as particulars about the firearm(s). The FFL is required to keep both the bound book and 4473 forms for a period of 20 years. If they go out of business at an earlier date the records must be turned over to the BATF&E.
After Universal Background Checks and transfers must be done by an FFL, all that's necessary is a slight amendment to the law requiring that copies of the records be submitted to the BATF&E and the registration database will soon be up and running.
Be careful what you wish for, beause you might get it...