590A1 for Sale
Browse 590A1 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The Mossberg 590A1 was developed from the U.S. military's request for a rugged, combat-ready shotgun based on the classic 500 platform. Built for durability and reliability, it features heavy-walled barrels, metal trigger guards, and tactical furniture. Today, it is a top pick among law enforcement and home-defense users seeking maximum performance in pump-action shotguns.
Why It's a Top Choice
- Built to MilSpec 3443E standards
- Heavy-walled barrel for enhanced durability
- Simple, ultra-reliable pump-action operation
- Parkerized finish resists corrosion
- Excellent aftermarket support
Key Variants
590A1 20-inch
Ideal for duty or home defense; balances maneuverability with capacity.
590A1 Retrograde
A wood-stocked throwback for collectors or traditionalists who want modern reliability.
590A1 SPX
Adds ghost ring sights and a bayonet lug for enhanced tactical use.
Competitor Comparison Table
| Feature | 590A1 | Remington 870 Police | Benelli M4 |
|---|---|---|---|
| MSRP | $600–$900 | $700–$900 | $1,900+ |
| Capacity | 8+1 (20\" barrel) | 6+1 | 5+1 |
| Weight | Around 7.25 lbs | Around 7.0 lbs | Around 8.4 lbs |
| Optics-Ready | No (standard), rail optional | No | Yes (Picatinny rail) |
| Trigger Type | Standard curved | Standard curved | Semi-auto only |
| Notable Pro | Built to military spec | Classic aftermarket availability | Semi-auto reliability |
| Notable Con | Heavier than standard pump guns | Less rugged for harsh environments | High price point |
Best Use Cases
- Home defense
- Law enforcement duty weapon
- Ranch and property security
- Shotgun training and qualification
- Military collectors
FAQs
What is the difference between the Mossberg 590 and 590A1?
The 590A1 uses a heavier barrel, metal trigger guard, and safety, making it MilSpec compliant.
Can I mount a bayonet on a 590A1?
Yes, select 590A1 models like the SPX feature a bayonet lug compatible with M9-type bayonets.
How does the Mossberg 590A1 perform with slugs?
It handles rifled slugs well for close ranges. Use ghost ring sights for better accuracy.
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Mossberg 590A1 SPX, 12 Gauge NEW 50771
$849.99
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