MOSSBERG 590A1 - 12 GA - 3" - 20" - 8+1 - BLACK

MOSSBERG 590A1 - 12 GA - 3" - 20" - 8+1 - BLACK

Mossberg
MPN:
51663
UPC:
015813516631
$757.69 - $864.69
(No reviews yet)
Current Stock:
Adding to cart… The item has been added
Description

The Mossberg 590A1 12 Gauge Pump-Action Shotgun is the gold standard in military and law enforcement duty shotguns, purpose-built to exceed rigorous U.S. MilSpec qualification standards and trusted by armed forces worldwide.

  • MilSpec-qualified construction tested and selected by U.S. armed forces
  • Heavy-walled barrel and metal trigger guard for extreme durability
  • Dual extractors ensure reliable chambering and positive shell ejection
  • Twin action bars eliminate binding for smooth, consistent pump cycling
  • Top-mounted ambidextrous safety for fast, intuitive operation
  • 8+1 round capacity with a 20" barrel and 3" chamber for versatility

Who This Is For

The 590A1 is built for serious shooters who demand military-grade reliability — whether you're in law enforcement, home defense, or a dedicated tactical shotgun enthusiast who refuses to compromise on quality and durability under pressure.

Mossberg 590A1 12 Gauge Pump-Action Shotgun – Right Side View Mossberg 590A1 12 Gauge Pump-Action Shotgun – Action and Receiver Detail

Specifications

BrandMossberg
Model590A1
Gauge12 Gauge
Chamber3"
Barrel Length20"
Capacity8+1
ActionPump Action
Stock FinishBlack Synthetic
Barrel FinishMatte Blued
SafetyTop-Mounted Ambidextrous
Overall LengthApprox. 41"
WeightApprox. 7.25 lbs.

Frequently Asked Questions

What makes the 590A1 different from the standard Mossberg 590?

The 590A1 is an upgraded, MilSpec version of the Mossberg 590 featuring a heavier-walled barrel, metal trigger guard, metal safety button, and a parkerized or matte finish on many configurations. These enhancements make it more resistant to the wear, impact, and harsh conditions encountered in military and law enforcement service — or demanding civilian use.

What types of ammunition can the Mossberg 590A1 handle?

The 590A1 is chambered for 3" 12 gauge shells, meaning it can cycle both 2¾" and 3" loads, including standard birdshot, buckshot, and rifled slugs. Its robust dual extractor and twin action bars are engineered to reliably feed a wide range of commercial and duty-grade ammunition without modification.

Is the Mossberg 590A1 compatible with aftermarket accessories?

Yes. The 590A1 has a large and well-established aftermarket ecosystem. It accepts a wide variety of Mossberg 590-compatible stocks, forends, sling mounts, and magazine tube extensions. Many configurations also accept heat shields and rail systems for lights or optics, making it highly customizable for tactical or home defense applications.

Additional Information
Caliber:
12 GA
Color:
Black
Barrel Length:
20"
Chamber:
3"
Sights:
Ghost Ring
Capacity:
8+1
Stock:
Fixed
Action:
Pump
Type of Barrel:
Heavy