The Framers' original intent is discussed in this 1991 law-review (U. Penn.) article, which was about distribution of power in the Constitution, which reserved to the People alone the power of the ballot box, the jury box, and the cartridge box, the Second Amendment making the last absolutely secure from any attempt by Congress, the States, or any combination of politicians and magistrates to attenuate or abolish:
Thanks for the link.
Happy New Year!