The push back begins..

[Red*Lion]

And most of those guns are sourced from direct theft

Actually it is not. 80% of guns used by criminals are obtained from friends and family through straw purchase. Those found guilty of straw purchases are never prosecuted. The second most common way that criminals get guns is from buying them off the streets from other criminals. The guns are typically used in a crime and then sold to another criminal. Stolen guns used in crimes by the person that stole the gun is the third most common. This data was collected from incarcerated criminals in multiple studies.
Other stats include that less than 3% of gun used in crimes were purchased at a gun show.