An 80% lower is a paper weight.

Once it's build out, the configuration in which it is first assembled dictates what it is.

If you first assemble it as a pistol, it's a pistol.

If you first assemble it as a rifle, it's a rifle.

Same thing applies to any stripped lower that's purchases as a "receiver".

You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.

You cannot over estimate the unimportance of nearly everything. John Maxwell