Mossberg 590A1 Tactical M-LOK 12 Gauge 20" 8+1 Pump Action Shotgun (Black)

The Mossberg 590A1 Tactical is a rugged, battle-proven pump-action shotgun designed to meet and exceed the toughest standards.

As the only pump shotgun to pass MilSpec 3443E, it’s trusted by military and law enforcement agencies around the world for its unmatched reliability and durability in the field.

Built with heavy-walled barrels and finished in corrosion-resistant Parkerized coating, the 590A1 is engineered for harsh conditions.

It features a metal trigger guard and safety buttons for long-lasting durability, along with a versatile M-LOK forend for easy attachment of lights, grips, and other accessories.

Additional performance-driven features include dual extractors, twin action bars, a positive steel-to-steel lockup, and an anti-jam elevator—all working together to ensure smooth, dependable operation in high-stress environments.

An ambidextrous safety adds versatility for both right- and left-handed shooters.

Whether you're on duty, at the range, or protecting your home, the Mossberg 590A1 Tactical delivers MilSpec performance you can count on.

Features / Specs

• Gauge: 12
• Capacity: 8 plus 1
• Chamber: 3"
• Barrel Type: Heavy-Walled
• Barrel Length: 20"
• Sight/Base: XS Ghost Ring
• Choke: Cylinder Bore
• LOP Type: Fixed
• LOP: 13.87"
• Barrel Finish: Parkerized
• Stock Finish: Synthetic (Black) w/ Shell Storage (4), M-Lok Forend
• Weight: 7
• Length: 41"