Be careful what you wish for. The plain language of the Constitution frames the gun right in terms of a militia. The key principle we must defend is the idea of the gun right being an individual right, separate and apart from any militia. A right derived from the individual, not the collective, right of self-defense. For that, the Second Amendment alone isn't very helpful. We need to stand behind the Heller decision, which for the first time, and by a precarious 5-4 majority, held the gun right to be an individual one.
PURE UNADULTERATED MANURE> The plain language of the Second Amendment says
The Right of the People to Keep and Bear Arms Shall Not be Infringed. There is nothing making active or past duty Militia service a condition of that Right. The militia (The Army, in its entirety, as defined by Barclay's Dictionary, London ca 1820) will secure whatever it wants by force of arms and needs no such guarantees. It is the People who need a safeguard when words fail to secure their Rights against a rogue military, whether that be State of Federal. If you pursue the issue in the Federalist you will discover that each state had a Militia (an army), and there was to be a standing Federal Army, large enough in size to interdict if two or more states got into a squabble, but not so large as to prevail against the militias of several states, or the overwhelming numbers of the armed populace, whether they had the benefit of Martial training or not..
The only reason there is any complication or discussion whatsoever on the issue of reciprocity, is that the Second Amendment has been violated some 20,000 times, placing infringements on the Right. Had The Second Amendment been strictly adhered to, we wouldn't even be talking about permits, reciprocity, magazine capacity, or any of it. The Right of the People to Keep and Bear Arms would not be Infringed, period.