But, see Montana, Texas, Tennessee, Idaho, and Utah: “Feds can shove gun laws in our state, for guns made and used in this state (which therefore never moved in interstate commerce).”
This is already settled case law... It's how the government managed to expand federal control over EVERYTHING via the interstate commerce clause.
The government will claim that since those guns manufactured and sold exclusively within the state influences the interstate sales of other gun manufacturers, because the people in that state ARE NOT buying the guns of out of state manufacturers!
The original case came from a farmer who claimed exemption from federal control because he was only feeding himself and his family, and since he wasn't buying or selling anything, his farm didn't fall under federal control. The court ruled that since he wasn't buying farm goods from out of state vendors, his lack of purchasing WAS affecting interstate commerce.
So the court ruled effectively that both doing stuff and not doing stuff affects interstate commerce, so the federal government has jurisdiction everywhere, over everything, through the interstate commerce clause of the Constitution.
Mark