The 590 Shockwave is a pump shotgun with a 14-inch barrel and Raptor pistol grip that is legally a firearm rather than a shotgun, avoiding NFA classification through its overall length and lack of stock. Type: Shotgun Action: Pump Caliber: 12 ga Capacity: 5 Year introduced: 2017, USA Weight: 64 oz Overall length: 26.4" Status: Active Intended use: Home Defense, Compact