Legal Barrel Length?

[Rocky Raab]

Any length barrel on a pistol is fine.

This silly law is the reason it's always best to buy a new T/C as a pistol. After that, you can change it either way at will - as long as you never have a short barrel and a buttstock installed simultaneously. Buy a carbine T/C and that's the only way you can legally have it, forever.

The rub comes if you buy a used frame. In theory, you'd have to research to learn how it left the factory, pistol or carbine. But T/C doesn't release that info - so you could be screwed without ever knowing it.