Mossberg 590A1 Model 50797 12 Gauge Shotgun 20" Barrel 6+1 Black

The Mossberg 590A1 delivers military-grade reliability in a tactical shotgun built to exceed the demanding standards of law enforcement and military users worldwide. This 12-gauge platform combines proven pump-action mechanics with heavy-duty construction that withstands extreme conditions and high round counts.

What Makes This Different

The 590A1 features a heavy-walled barrel and metal trigger guard assembly that sets it apart from standard sporting shotguns. Military specification components include a steel trigger guard, safety button, and elevator - upgrades that ensure consistent function under stress. The parkerized finish provides superior corrosion resistance compared to standard blued finishes, while the cylinder bore choke handles everything from buckshot to slugs without modification.

Key Features

• Heavy-walled 20-inch barrel with cylinder bore for versatility with all 12-gauge loads
• 6+1 capacity with 3-inch chamber capability for maximum firepower
• Metal trigger guard and safety button exceed mil-spec durability requirements
• Dual extractors and positive steel-to-steel lockup ensure reliable cycling
• Parkerized matte finish resists corrosion and reduces glare
• Ghost ring sights provide fast target acquisition in low-light conditions
• Synthetic stock and forend resist impact damage and weather exposure

Field performance demonstrates why the 590A1 earned military adoption across multiple branches. The action cycles smoothly with rapid follow-up shots, while the 20-inch barrel balances maneuverability with ballistic performance. Law enforcement agencies report consistent function through thousands of training rounds, and the platform maintains zero even after extended firing sessions. The cylinder bore handles tactical loads, hunting ammunition, and less-lethal rounds with equal reliability.

Technical Specs

• Gauge: 12-gauge, 3-inch chamber
• Barrel Length: 20 inches, heavy-walled construction
• Overall Length: 41 inches
• Weight: Approximately 7 pounds
• Capacity: 6+1 rounds
• Choke: Cylinder bore
• Stock: Black synthetic with textured grip surfaces
• Finish: Parkerized metal components
• Sights: Ghost ring rear, winged front post
• Safety: Tang-mounted, ambidextrous operation
• Made in USA with lifetime warranty

The 590A1 represents decades of refinement in tactical shotgun design, backed by real-world military and law enforcement adoption. This configuration delivers maximum versatility in a package that maintains reliability regardless of conditions or ammunition selection.