Mossberg Adds a 20 Gauge Non-NFA 590 Shockwave

Mossberg bills their non-NFA, not-a-shotgun 590 Shockwave the modern-day six-shooter. It may not be quite as portable as a Single Action Army, but it looks like it would make a hell of a good trunk gun or home defense blaster. Now Mossy’s adding a 20 gauge version to go along with the original 12 gauge […]