PSA multi cal lower

[FLshooter]

Your failing to understand what is being said. If you buy a striped lower it's marked as "other". Everyone agrees. You can use lower to build either a rifle or a pistol. Everyone agrees. Where you are getting lost is that if you built a rifle with that lower originally then that lower is always a rifle and cannot be made into a pistol. If you made it into a pistol originally then your good. Here is the atfs definition of a pistol and on their publication they put the word "originally" in bold for a reason.

the term “pistol” is defined by the Act’s implementing regulations, 27
CFR 479.11, as “a weapon originally designed, made, and intended to fire a projectile
(bullet) from one or more barrels when held in one hand, and having (a) a chamber(s) as an
integral part(s) of, or permanently aligned with, the bore(s); and (b) a short stock designed
to be gripped by one hand and at an angle to and extending below the line of the bore(s)”

I totally understand.
But if ATF looks up the serial on your pistol lower and comes up as “other”. You will be fine. They would have no way on earth to know if you ever had a different stock or different upper on it.Or if you build it into a flamethrower at one time for that matter!