You go, Mo! “Any official, agent, or employee of the federal government who enforces or attempts to enforce any act, order, law, statute, rule, or regulation of the federal government created or effective on or after January 1, 2013, upon a personal firearm, a firearm accessory, or ammunition that is owned or manufactured commercially or privately in the state of Missouri and that remains exclusively within the borders of the state of Missouri shall be guilty of a class D felony.”