[TigersEye]

I am well aware of those definitions. The barrel is 18 3/8” (depending on where you measure from) and the overall length is 27 1/8”. But it has a pistol grip which is what all of these articles have been blabbering about.

[Elderberry]

The problem, as I understand it, is for a modern firearm with a bore over 1/2 inch to not be defined as a destructive device. It must be either a shotgun or a rifle.

The definition of a shotgun states it’s shoulder fired.
So pistol gripped shotguns, except 410’s, are now destructive devices.

[stylin19a]

Regarding Illinois, it doesn't fall under the restrictions of a long gun or a shotgun, and (here' the rub) if it was designed to be held and fired with one hand, then it's an eligible weapon for Illinois Concealed Carry statute.

and Illinois doesn't require complete concealed.

“Concealed firearm” means a loaded or unloaded handgun
carried on or about a person completely or mostly concealed
from view of the public or on or about a person within a
vehicle.”