Ok, so the dingleberries are forcing you to register your AR Pistol as an SBR. Being that it is registered as a pistol, but they allow you to throw a 16"+ upper on and now be a "rifle" again (even though the lower is still a registered pistol) , are you allowed to just file the paperwork for it as an SBR and be done with it? (Allowing for a fully adjustable stock now instead of the "brace". My words may not be correct but I hope someone understands what I am getting at.