Mossberg 590A1 Tactical 12 Gauge Shotgun 18.5" M-LOK 6+1

The Mossberg 590A1 Tactical delivers military-grade reliability in a platform built for serious defensive applications. This heavy-barrel shotgun features the proven 590A1 action with enhanced durability components that exceed standard civilian shotgun specifications.

What Makes This Different

The 590A1 series incorporates a heavy-walled barrel and metal trigger guard assembly, distinguishing it from standard pump-action shotguns. The cylinder bore configuration optimizes performance with tactical ammunition loads, while the parkerized finish provides superior corrosion resistance compared to blued alternatives. Ghost ring sights offer rapid target acquisition with both eyes open, significantly faster than traditional bead sights.

Key Features

• Heavy-walled 18.5-inch cylinder bore barrel rated for continuous use
• M-LOK compatible handguard for accessory mounting flexibility
• Ghost ring sight system with protective ears for impact resistance
• Black parkerized receiver finish with 96-hour salt spray resistance
• Synthetic stock and forend resist weather and chemical exposure
• 6+1 capacity with 3-inch chamber capability
• Ambidextrous safety located behind trigger guard

Field testing demonstrates consistent cycling with various load types from light target loads to 3-inch magnum rounds. The dual extractors and anti-jam elevator reduce feeding malfunctions common in high-stress situations. Law enforcement agencies have documented the 590A1's function in temperatures ranging from -20°F to 140°F without operational failures. The M-LOK handguard accepts standard accessories including lights, lasers, and vertical grips without modification.

Technical Specs

• Gauge: 12 gauge, 3-inch chamber
• Barrel Length: 18.5 inches, cylinder bore
• Overall Length: 39.5 inches
• Weight: 7.25 pounds
• Capacity: 6+1 rounds
• Stock: Black synthetic with spacers
• Finish: Parkerized receiver, matte barrel
• Sights: Ghost ring rear, blade front
• Safety: Cross-bolt, reversible
• Made in USA

The 590A1 Tactical represents proven engineering refined through decades of military and law enforcement feedback. Current production models include the updated M-LOK handguard system, expanding accessory options while maintaining the platform's legendary reliability.