For long guns (which is kind of pointless, I suppose). The point is that there is nothing preventing you from stocking up on arms for when MD/DE/PA have to become their own country.

You’ll need to shoot for constitutional carry. Here in KS (least gun laws in the nation) there is statewide open & concealed carry, no license required, at schools, bars, university. Though there would be a trespassing charge if you refuse to leave if asked. Still need a CCH license to get around federal Gun Free School Zones. No NICS if you have CCW.

The recent Firearms Protection Act says firearms and accessories (suppressors) made in KS are exempt from federal regulation. Though a couple of guys lost their federal case when they built a suppressor and sold it; at least no prison sentence.