Would a do-it-yourself gun background check work?

Would a do-it-yourself gun background check work?: "A gun buyer would log in to a free federal web portal and enter some personal information. If the buyer passes the background check, he or she would get a multi-digit key code, good for 30 days, to print out and take to a seller. That seller would use the same portal to confirm the authenticity of the background check."

"That dealer might not be convenient, and may charge a fee for the transfer service, Coburn said. And forcing everyone to go through a licensed dealer would simply push gun sales into the shadows. "If you make it easy for people to comply with the law, they'll do it," he said. "If I'm a gun owner, I want to know I'm not selling to someone who's on the list." "