Suppose you have a multi barrel gun, such as an under/over scattergun.

If you cut one barrel to less than 18" while leaving the other to over 18", does the nfa classification change?

(5) The term “shotgun” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of an explosive to fire through a smooth bore either a number of ball shot or a single projectile for each single pull of the trigger.
(6) The term “short-barreled shotgun” means a shotgun having one or more barrels less than eighteen inches in length and any weapon made from a shotgun (whether by alteration, modification or otherwise) if such a weapon as modified has an overall length of less than twenty-six inches.
(7) The term “rifle” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of an explosive to fire only a single projectile through a rifled bore for each single pull of the trigger.
(8) The term “short-barreled rifle” means a rifle having one or more barrels less than sixteen inches in length and any weapon made from a rifle (whether by alteration, modification, or otherwise) if such weapon, as modified, has an overall length of less than twenty-six inches.

Thanks for pointing that out guns4liberty!

Thanks for pointing that out guns4liberty!

However ... let’s go back to my earlier post. We know that you can have a rifle with a short barrel and permanently attached muzzle device and still not have an SBR, so in applying this law they clearly look at more than just the barrel itself.

I still maintain that the same logic might apply here.

My assumption is that the two barrels are permanently attached to each other, as they are with double-barreled shotguns.