Mossberg 590A1 Retrograde 12 Gauge 20″ Pump Shotgun

The Mossberg 590A1 Retrograde is a 12 gauge pump-action shotgun built to demanding duty specifications. It pairs a 20-inch heavy-walled parkerized barrel with an overlying heat shield and factory ghost ring sights. The operating system includes dual extractors, twin action bars and an anti-jam elevator for consistent cycling. This model chambers 12-gauge 2.75" and 3" factory shotshells.

Key Specifications

• The model is 590A1 Retrograde.
• The action is Pump Action.
• The gauge is 12 Gauge.
• The barrel measures 20 inches.
• The chamber accepts 3-inch shells.
• The barrel is finished as heavy-walled with heat shield.
• The sights are Ghost Ring.
• The barrel finish is Parkerized.
• The overall length is 41 inches.
• The unloaded weight is approximately 7.25 lbs.

Purpose-built for demanding use, the 590A1 Retrograde offers a straightforward, durable platform for home defense and service-oriented applications where reliability matters. Its heavy-walled barrel, heat shield and robust action components emphasize longevity and field serviceability while factory ghost-ring sights provide a practical sighting system for rapid, confident handling.