It has not been enforced yet, but does this mean I have to register all my AR pistols? What if I have a lower that uses many different uppers in different lengths? I have several lowers that I use different uppers with as I like changing things up? Does this mean that lower has to be registered to the upper and stay on that lower so i can only have 1 gun as a sbr and can't change to different uppers? Wow this law seems to suck!

https://www.justice.gov/opa/pr/justice-d...es-used-convert

I would think the deciding factor would involve how the lower was classified when you purchased it, Rifle, pistol or other. Once an upper receiver is mated with the lower receiver that in itself determines what the firearm is (rifle or pistol) if the lower was classified as other at time of purchase. This does not allow you to change from pistol to rifle or vice versa.

But new ATF rule says you can change your pistol to a rifle if you don’t want to register it. Just like them waving the stamp fee, I would not think they have the authority to allow that but I could be wrong. Someone is gonna come collect this $200 at some point I would think. 20 million plus AR pistols x’s $200 tax stamp is a lot of money especially with the back log this will do to the system.