We tried it in Kansas.
A personal firearm, a firearm accessory or ammunition that is owned or manufactured commercially or privately in Kansas and that remains within the borders of Kansas is not subject to any federal law, treaty, federal regulation, or federal executive action, including any federal firearm or ammunition registration program, under the authority of congress to regulate interstate commerce. It is declared by the legislature that those items have not traveled in interstate commerce. This section applies to a firearm, a firearm accessory or ammunition that is owned or manufactured in the state of Kansas.
They even tried to give it some teeth:
It is unlawful for any official, agent or employee of the government of the United States, or employee of a corporation providing services to the government of the United States to enforce or attempt to enforce any act, law, treaty, order, rule or regulation of the government of the United States upon a firearm, a firearm accessory, or ammunition that is owned or manufactured commercially or privately in the state of Kansas and that remains within the borders of Kansas. Violation of this section is a severity level 10 nonperson felony
None of it mattered. Some folks made some suppressors, posted about it on social media, and promptly got nailed by the feds.
http://www.startribune.com/ruling-kansas-gun-law-no-defense-to-federal-firearm-charges/497742841/Sure, you can flaunt the cultivation, sale and consumption of pot in a number of states, but if you try this with guns, you WILL get nailed to the wall by feds.
