There's another argument that nets us a "right to CCW" based on the *14th* Amendment.
Huh?
A good case can be made that the 14th effectively altered the BoR from a "political right" akin to the right to vote, into a "personal civil right to self defense" which in the case of at least some of the people who got that right in 1868 (at the passage of the 14th) would have absolutely required concealed carry.
See, there's strong evidence that the "privileges and immunities" that states were required to honor per the 14th included the 2nd Amendment. And in doing so, a key purpose for the 14th was to make sure the new black citizens of the South could defend against criminals, especially the rising tide of "night riders" (proto-KKK).
It's not just "right wingers" such as law professor Stephen Halbrook saying this (although he did, in his 1984 book "That Every Man Be Armed"). Left-wing Yale law professor Akhil Reed Amar found the same thing from primary sources in a pair of law review articles and then his 1998 book "The Bill Of Rights".
Here's the kicker: the blacks thus armed didn't gain the right to vote (or serve in "militias") until the *15th* Amendment a few years later. Which means the 2nd Amendment became disconnected with "militia service" to a large degree; in 1868, the idea of Southern states enrolling blacks in any sort of "militia" is laughable since at that time, Southern "militia" uniforms usually involved bedsheets with eyeholes
.
And if blacks got such a personal right to arms, they'd sure as hell need to CCW. The last time the NYPD thought they had an armed black dude in sight, they sent 41 rounds his way, connecting with 18 and killing him deader'n'Elvis. The Atlanta GA police circa 1868 would have been even more trigger-happy at the sight of an openly armed black dude.
By 1868, the idea of CCW weapons was well established. Functional percussion revolvers had existed since 1836 and by 1868 were common on the used market, especially given the surplusses from the recent war. By around 1855, the Mormons had invented the big-bore snub-nose revolver by necessity (36 and 44cals chopped as short as 3" and known as "Avenging Angels" for the Mormon security troops that carried 'em). Colt had a 4" barrel factory 31cal deep-concealment revolver by 1861, and S&W had 22rimfires as early as the 1850s. There were also those cool little "Volcanic" lever-handguns that later got enlarged to rifle length but meanwhile gave the revolvers a run for their money in terms of effectiveness and firepower.
The point is, both the technology and need for CCW was well understood by 1868. And if Amar, Halbrook and the like are correct, this was a driving force behind the 14th.
For a lot more details on all this and links to more info, see also:
http://www.equalccw.com/practicalrace.html