There is no legal way to check the numbers . FFL's do not have any way to check them and it is against the law for leo's to run them if they are not involved in an investigation.
The sheriff told me a couple of years ago to buy the gun unless I knew it was stolen . He said I had to know they were stolen to be charged with a crime .
I see you are in Florida , therefore I have no idea what florida law is .
Maybe not charged with a crime but possession of stolen property, they'll at least want the property back.
