I have the knowledge, equipment and ability to construct and manufacture a firearm that could decimate several people in seconds.
If I only manufacture and use it in Texas does that mean it is not covered by the Federal Firearms laws.
Just askin
I’m not sure how the courts would rule, but whether it was inter- or intrastate, it wouldn’t constitutionally be under federal control. The Second Amendment is pretty clear as to your right to bear arms, and since laws pertaining to firearms have nothing to do with the enumerated powers, your right is further protected by the Tenth Amendment.
Is a Cannon a “firearm” ?...;0)
You can build guns from scratch. You can not sell them.
http://www.cncguns.com
Smoothbore black powder cannons aren’t “firearms” apparently, and otherwise fit your criteria.