I've read that in some localities, folks with a concealed carry permit might buy AR pistols for legal reasons. Apparently in some areas at least, having a loaded AR rifle in your car can be a big "no no", but having a loaded AR pistol in your car is ok, if you have a pistol permit. And some cartridges do better than .223/5.56 in short barrels.
Obviously, FWIW, YMMV, etc., etc.
Hey I’m a to each their own kinda guy. But my philosophy is if you need a pistol get a pistol. Don’t try to turn a rifle into one.
To me it’s like firing a .357 magnum cartridge through a 1-1/2 long barrel. All you’re going to get is a horrendous muzzle flash while achieving the muzzle velocity of a +P .38 Spl. Maybe.
Need a pistol? Buy one. Learn how to use it effectively.
Need a rifle? Buy one. Learn how to use it effectively.
Need a shotgun? Buy one. Learn how to use it effectively.
Put all the rest of the cash into ammunition, Range time, and professional training. Everything else is just silly.
One man’s opinion and it’s worth exactly what you paid for it.
L