Ab_Normal
Ab_member
Correct me if I am wrong, but can't you put an upper on the lowers you sell prior to machining? I believe that the ones you sell are the same ones I bought prior to 10/1 (yes they were finished before the date). If you put an hbar upper on before machining, then this seems like the best way to do it after 10/1 since the firearm would be an hbar (although I would not recommend it, it may be possible). IANAL, this is just MY OPINION.
Yes that would be legal using the same definition the MSP is using to say stripped lowers are banned. Should apply to making an AR pistol too.
I have yet to see anything from MSP stating what constitutes an HBAR but it would seem that anything that uses a .750 or larger gas block and is noticeably larger than the 5/8" nominal size barrels would qualify as HBAR.