You couldn't. At least not legally. Buying firearms from a private party in another state is illegal by federal law. You could only buy long guns from a federally licensed dealer in a neighboring state if that firearm is legal in your state of residence. If you wanted to buy a handgun from a federally licensed dealer, it would have to be transferred to a dealer in your state.
>In Florida, this one chick left an AR on the sofa with a full mag, a round racked, safety off (State 4, aka Instant state, which means SOMETHIN'S GETTIN' SHOT).
Can you mention where these State levels are defined? What you described sounds closer to Condition 0 on the firearm condition readiness scale.
https://en.wikipedia.org/wiki/Jeff_Cooper#Firearm_conditions...
>Condition 0: A round chambered, full magazine in place, hammer cocked, safety off.
If we're talking about frustrating the gun industry, then all of your licensees should be able to privately manufacture firearms in the classifications they are allowed to have.