Are you serious?
1. What does that even mean? Other than you have no idea what to say.
2. The COTUS is dead? Since when? We have added and deleted Amendments from it. But yeah, the essential meaning of the document of yesterday is relavent today. Mainly because the Framers took note of human nature (unchanged in thousands of years and thousands of attempts) and the nature of power (unchanged in thousands of years and thousands of attempts). The Articles or Amendments address the failures of the past and lessons learned from those pasts.
3. The idea behind the 2A is that a tyrant always uses a standing army to subdue and control the governed. An armed citizenry which out number and outguns the army is essentual to freedom