Pistol one handed semiautomatic weapon.
Revolver one handed revolving cylinder weapon.
Carbine shoulder stock two handed weapon barrel up to 18 inches..
Rifle shoulder stock two handed weapon barrel 18 inches or more in length.
The term pistol is a broader term that is not specific to the firing mechanism. Revolvers are pistols. Derringers are pistols while they are neither revolvers nor semiautomatic.
While I agree that a pistol must be capable of firing its entire supply of ammunition one-handed, two-handed if the second hand is used to support the first, lashing the firearm to the shooters arm should not be permitted to meet that criteria. Bullpups can often be fired one-handed but they are a design separate entirely from pistols and rifles. But the fact they can be fired with one hand and have a longer barrel just shows that the criterial for being a pistol or not is very fluid.
What if a firearm has no shoulder stock and an 18+” barrel? I think that would still be a rifle.
Does a shoulder stock on a .38 revolver with a 3” barrel make it a carbine? I think it would still be a pistol. A stupid looking pistol but still a pistol.
I find it difficult to identify a consistent set of criteria on which to determine pistol or rifle classification, government classification aside. It seems that any “rule” can’t logically be applied to all firearms. There’s always a combination of barrel and stock that excludes it from one classification or the other.
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