MOSSBERG 590A1 - 12 GA - 3" - 20" - 8+1 - BLACK
$757.69 - $864.69
MOSSBERG 590A1 MAGPUL - 12 GA - 3" - 20" - 8+1 - BLACK
Mossberg
$844.69 - $964.69
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Mossberg
MOSSBERG 590A1 MAGPUL - 12 GA - 3" - 20" - 8+1 - BLACK
The Mossberg 590A1 Magpul 12 Gauge Pump-Action Shotgun is a battle-proven, MilSpec-qualified powerhouse trusted by U.S. armed forces, law enforcement agencies, and serious home defenders worldwide — now outfitted with premium Magpul furniture for enhanced ergonomics and modern tactical versatility.
- MilSpec 3443E qualified — the standard U.S. military duty shotgun
- Magpul SGA stock and M-LOK forend for customizable, mission-ready ergonomics
- 20" heavy-walled barrel with 8+1 capacity in 12 gauge 3" chamber
- Dual extractors and twin action bars ensure smooth, reliable cycling
- Ambidextrous top-mounted tang safety for fast, intuitive operation
- Corrosion-resistant parkerized finish built to withstand harsh conditions
Who This Is For
The Mossberg 590A1 Magpul is ideal for law enforcement professionals, military personnel, competitive shooters, and homeowners who demand a no-compromise defensive shotgun. If you want the reliability of a combat-tested platform with the ergonomic upgrades of Magpul's industry-leading accessories — all in one factory package — this is the shotgun built for you.
Specifications
| Brand | Mossberg |
|---|---|
| Model | 590A1 Magpul |
| Action | Pump Action |
| Gauge | 12 Gauge |
| Chamber | 3" |
| Barrel Length | 20" |
| Capacity | 8+1 |
| Stock | Magpul SGA |
| Forend | Magpul M-LOK |
| Finish | Parkerized (Matte Black) |
| Safety | Top-Mounted Tang (Ambidextrous) |
| Overall Length | 40" (approximate) |
| Weight | ~7.25 lbs (unloaded) |
| Country of Origin | USA |
Frequently Asked Questions
What makes the 590A1 different from the standard Mossberg 500 or 590?
The 590A1 is Mossberg's heavy-duty, MilSpec-qualified variant, featuring a thicker-walled barrel, metal trigger guard, metal safety button, and reinforced magazine tube specifically designed to meet U.S. military testing requirements (MilSpec 3443E). The standard 590 and 500 models, while excellent shotguns, are built to commercial tolerances and lack some of these enhanced durability features.
What ammunition can I use in the Mossberg 590A1 Magpul?
This shotgun is chambered for 3" 12 gauge shells, meaning it will reliably cycle both 2¾" and 3" loads — including birdshot, buckshot, and slugs. For defensive or tactical use, standard 00 buckshot in 2¾" or 3" is a popular and effective choice. Always verify that your ammunition is appropriate for your intended use and conforms to SAAMI standards.
Is the Mossberg 590A1 compatible with standard Mossberg 500 accessories?
Many Mossberg 500-series accessories are compatible with the 590A1, but not all. The 590A1 uses a magazine cap with a different thread pattern, and its longer magazine tube and heavy-walled barrel may affect fit for some aftermarket forends and barrel-mounted accessories. The Magpul SGA stock and M-LOK forend included on this model are purpose-fit for the 590/590A1 platform, ensuring a secure and proper fit right out of the box.
- Caliber:
- 12 GA
- Color:
- Black
- Barrel Length:
- 20"
- Chamber:
- 3"
- Sights:
- Ghost Ring
- Capacity:
- 8+1
- Stock:
- Fixed
- Action:
- Pump
- Type of Barrel:
- Heavy
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