A glamour shot of the Mossberg 590 Shockwave 12 gauge shotgun in our P3 Ultimate Gun Vise with Shooting Rest Attachment.
Classification of the Mossberg 590 Shockwave (at the time of this post):
The Bureau of Alcohol, Tobacco, Firearms & Explosives has confirmed the 590 Shockwave as a “firearm” per the Gun Control Act (GCA), but not a Class 3/NFA firearm.