I bet they'll say to check with the state AG's office or some such.
That was my guess too ... and that is exactly what they said (see their response below).
My hope was the they would be able to share that the 590 Shockwave is not classified as a "shotgun" but as a "weapon" and not subject to federal or state shotgun requirements.
Because that is really the strange part .... in every state that I searched I could not find one that allows a shotgun to have less than 18" (non-NFA). So why would a company like Mossberg market a gun that is illegal to own in every state?
So there has to be something here that I am missing. I replied back and asked them why they are marketing a shotgun that is illegal in every state that I could find? Have not heard back.
Here is what Mossberg said ...
"Thank you for your email. Although the Mossberg 590 Shockwave is classified as a “pistol grip firearm": under the Gun Control Act of 1968, and is not subject to the provisions of the National Firearms Act, state and local laws may be more restrictive. Even though, it is legal federally, the 590 Shockwave may be considered a “short-barreled” shotgun or “assault weapon” by certain state and local laws; and therefore illegal to possess. Please check with your local authorities concerning the legality of possessing a firearm of this configuration. Thank you."
Sincerely,
Customer Service Team
O.F. Mossberg & Sons, Inc.