Do you need a quick shorty shotgun for close quarter firepower? Have a look at Mossberg Shockwave. You’re not gonna need a tax stamp or special approvals to get this short barrel with a high-capacity pump action shotgun. But you’ll need more ammo. The Shockwave is technically a "firearm" (Class 3/NFA) due to its 14-inch barrel that shoots a 12 gauge load. Shockwave also incorporates the "bird's-head" style grip in place of the shoulder stock. Youtuber Hickok45 had a chance to do some plinking with this awesome shotgun. So, what seemingly looks like an NFA shotgun is actually classified as...