Quoted:
It does. I was under the impression that if it was under 26" it could be "concealed carried", i.e. I could have it loaded in my car as a truck gun. Was I misinformed?
View Quote
As noted in my prior post in a similar thread, the relevance of 26" or shorter being "concealable" was a federal interpretation of the NFA of 1934.
State laws can vary on the subject. For example, in 2012 Michigan enacted a law that limited the OAL to 26", which was a reduction from the previous 30" but it was only relevant if someone wanted to carry the firearm as a "handgun".
VA has a "concealed handgun permit", which implies handguns rather than any type of firearm, however the actual law is a little vague on that point. The law specifically forbids the permit from being used to conceal a weapon other than a "firearm", which strongly suggests it is not limited to just handgun.
When I lived in VA, I was not able to find a VA legal definition of "Handgun", nor any definitive information on whether long guns could also be carried concealed. But, I also didn't look all that hard as I wasn't carrying an AR pistol.
Absent a specific VA law that defines a handgun as less than 26", and also prohibits carrying a concealed long gun (neither of which I ever found) you are on pretty safe ground, particularly if your "firearm" is built on a receiver logged out from the FFL as a pistol, and configured as a pistol, per ATF's definition.