Pistol upper legal to own?

[ike838]

Again, no such thing as a "pistol upper". It's just an upper with a short barrel (by legal def, under 16"). Especially if it's something that's just to "add to the pile"---of other uppers presumably. May as well start using the correct terminology at this point of the thread.

I know the terminology. That is why I am considering building a pistol.
A SBR is another kettle of fish.
Why do companies sell pistol uppers and weapons if there is "no such thing"?
For me it would be a toy. No day to day practical use for me.

Side note SDW. Didn't think having spare build parts on hand was unusual. To each their own.