Just spoke with NFA.


Per Sheri (did not get last name):
-Any permanent change in SBR length (longer or shorter) then you must notify NFA in writing and wait for approval (approx 30 days).
-Temporary changes: did not know

Per Janice Fields:
-for temp change: no need to notify NFA for any temp change in barrel length, either shorter or longer.

I had old info before on the longer to shorter berrels, my fault. Now, there is current info right from NFA.