Another question about all this. When if ever would you be asked if you had done a background check on a weapon? The only time I can see this arising would be if you have committed a crime with the weapon. If you are pulled over by the police and asked about your weapons can they look and see if you have performed a background check or would they have to arrest you, confiscate your weapons and do an investigation?
Also I have heard that the NFA trust thing will not be grandfathered and you will have a certain amount of time to send the ATF, fingerprints and LEO sign off. This is the real problem with the new NFA law, a lot of people live in counties that won't sign off so potentially a bunch of people may have to sell off their toys or relocate.