Mauricio, yes Sir the Shockwave is perfectly legal to purchase/own in the State of NC. You can lawfully possess or own the Mossberg 590 as it falls within the exception of N.C.G.S. § 14-288.8(b)(5) and its possession alone would not constitute a crime in the State of North Carolina.
Hi Mauricio, Yes this is legal in NC ***We're currently not shipping this firearm to CA, or MA***
Yes, here is the full determination of the NC Attorney General if you'd like to see it: .nssf.org/share/PDF/Schatzman-Sheriff-Mossberg-590-Shockwave.pdf