Mossberg 590 Shockwave 20 Gauge Pump-Action Shotgun

The Mossberg 590 Shockwave is a compact 20-gauge pump-action firearm from Mossberg's Shockwave series intended for close-quarters and home-defense applications. It pairs a synthetic stock and forend with a Raptor bird's-head pistol grip for a compact handling profile. The design retains Mossberg pump-action features such as an ambidextrous safety, dual extractors, and twin action bars for reliable operation.

Key Specifications

• The gauge is 20 Gauge.
• The operating system is Pump Action.
• The chamber accepts 3" shells.
• The exterior metal finish is Blued.
• The stock and forend are synthetic.
• The grip is a Raptor grip (bird's-head pistol grip).
• Sighting is provided by a bead front sight.
• The bore is a cylinder bore.
• The magazine is a tubular magazine.
• The ATF type is listed as a Pistol Grip Firearm.

With Mossberg's proven pump-action features and a compact, utility-focused layout, the 590 Shockwave is engineered for dependable operation in confined environments. Its synthetic furniture and Raptor grip deliver a manageable, low-profile package that preserves the simple, robust mechanics shooters rely on for routine handling and storage.