The minimum legal barrel length for a rifle without requiring it to be tax stamped and registered as a Short Barreled Rifle is 16 inches - that's federal law, and not just Vermont.
In Ohio, the legal minimum barrel length for a rifle is 16 inches. Any rifle with a barrel length shorter than that would be considered a short-barreled rifle, which is regulated under the National Firearms Act (NFA).
16"
16 inches
As long as you follow all Federal laws, any length you want.
It depends.. if you have a carbine length barrel and will be using it on a rifle with a carbine length barrel, then yes. If you took it from a rifle with a rifle length barrel, and are putting it on a rifle with a carbine length barrel, then it won't function properly.
Keep the over all leingth of the firearm greater than 26" and you can have whatever barrel leingth you desire.
There is no legal maximum for a pistol barrel, A RIFLE must have a MINIMUM 16 inch barrel unless registered as a "Short Barreled Rifle", but pistols do not have a maximum.
Anything shorter than 16 inches is deemed illegal in the state of Virginia
I am fairly certain it is the rifled part of the barrel, not including the chamber, from the headspace ledge to the muzzle, and including any permanant non-rifled attachments to the muzzle. Therefore, a rifle with a fifteen inch barrel can be legal if it has a muzzle brake or compensator which brings its length to over sixteen inches.
It can be, depending on the action the gun uses. It can also be illegal if you cut the barrel length below the legal limit. In the US, a Title 1 rifle must have a minimum barrel length of 16 inches, and a Title I shotgun must have a minimum barrel length of 18 inches.
16 inches without requiring an NFA permit, the same as it is for the rest of the country.
According to federal law the shortest barrel length allowed for both rifle or shotgun is 16 inches.