Trying to build a AR pistol that is CCW legal here in Ohio. After much searching without a lot of info I am assuming that I need to stay 26" or shorter in overall length? I know that possibly Ohio like a few other states may have a different number but I dont believe so from what I have researched.

How does ATF measure a pistols OAL? From end of barrel (I got that part) to the end of the buffer tube on in the case of a brace to the end of the brace? I know with some braces that they can actually hang past the buffer tube a little or even a lot if using something like the SBPDW.

If I decide to add a LAW Folder then I assume seeing it is in-between and necessary for the operation of the weapon that I will also need to factor that in as well?