jason.krywicki
Active Member
I have an SBR'ed AR-15 lower on a Form 1 that indicates that the SBR as built is > 29". My question is because it is a pre-10/1/13 SBR, can I put an upper on it that would cause it to be < 29" OAL or is that "building" a new firearm?
Thanks,
Jason
Thanks,
Jason