I think the ATF stance is they were always a Rifle, SBR to be exact.
So taking a gun that was sold with a brace and they say is a SBR from the point it was created at the factory.....
Could you legally just remove the brace (stock, we all know they were a stock) and make it into a pistol?
Yep ATF said that was one optional way. Do you trust them?
They said it was OK to prevent needing to register it as a rifle,
But where did they say you can register as an SBR then return it to a pistol?
Thomson center v us