I know you need prior approval to bring your SBR out of state, My question is, Is your registered lower considered an SBR if you use it with a 16"+ upper? Can you transport the registered lower if you only bring a 16" upper with you? Can you point me to an ATF ruling on this?

An SBR is defined by its configuration, so a normal AR lower with 16 BBL is GTG.

That's my understanding. I'm trying to find some official confirmation of that.

Info you seek is on the ATF's SBR/SBS FAQ website:

http://www.atf.gov/firearms/faq/national-firearms-act-short-barreled-rifles-shotguns.html

Great link but to me its still not clear.

Not  SBR with 16" barrel, just a registered receiver. ask in the general class 3 or SBR sections of armory.

Not sure if I agree with the above

From what i've read, once a NFA item, always an NFA item,


From the above link


Q: If I remove the short barrel from the registered SBR or SBS, is the receiver still subject to NFA transfer and possession regulations?

   If the possessor retains control over the barrel or other parts required to assemble the SBR or SBS, the firearm would still be subject to NFA transfer and possession regulations. ATF recommends contacting State law enforcement officials to ensure compliance with state and local law.

Q: Does the installation of a barrel over 16 inches in length (SBR) or 18 inches in length (SBS) remove the firearm from the purview of the NFA? If so, is this considered a permanent change?

   Installation of a barrel greater than 16 inches in length (SBR) or 18 inches in length (SBS) will remove the firearm from the purview of the NFA provided the registrant does not maintain control over the parts necessary to reconfigure the firearm as a SBR or SBS.




Seem you would have to get rid of any sub 16inch uppers

Sounds like if he went on a trip but left the SBR upper at home, that would be OK.

Disclaimer: don't take my word for it.

that's how I read it. No ability to make SBR, it isnt an SBR