Well that’s a really bad example you gave because gun laws explicitly cover that exact case federally. This is more like book banning. Books are banned in your state, not mine, you come and buy them here and take them back there.
Or fireworks. Many states have laws against selling fireworks to state residents, but all you need to do is cross a border or have an out of state license and you can buy them just fine.
Well that’s a really bad example you gave because gun laws explicitly cover that exact case federally. This is more like book banning. Books are banned in your state, not mine, you come and buy them here and take them back there.
Or fireworks. Many states have laws against selling fireworks to state residents, but all you need to do is cross a border or have an out of state license and you can buy them just fine.