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Mossberg 590A1 – Mil-Spec 12-Gauge, Pump-Action Mossberg Shotgun

Mossberg 590A1


(Out of stock)

  • Mossberg 590A1 – Mil-Spec 12-Gauge, Pump-Action Mossberg Shotgun Mossberg 590A1 – Mil-Spec 12-Gauge, Pump-Action Mossberg Shotgun

Quick Overview

The Mossberg 590A1 is a 12-gauge, pump-action shotgun with a 20-inch heavy barrel and a fixed synthetic stock. Its three-inch chamber provides for a nine-shell capacity, but the real draw –aside from its proven military performance – is the inclusion of an aluminum trigger guard and button safety, which are joined by a wealth of other practical features that make this shotgun one worthy of a look or two.

Availability: Out of Stock



O.F. Mossberg & Sons, more commonly known as Mossberg, is an American arms manufacturer that was founded in 1919 by Swedish-born Oscar Frederick Mossberg alongside his two sons. Mossberg came to the United States in 1886, where he worked in a bicycle factory owned by Iver Johnson. Though the company was founded on the Mossberg Brownie – a four-barreled handgun chambered in .22 LR – it is now known the world over for producing exceptional rifles and shotguns.

As one may guess based on its name, the Mossberg 590A1 is a shotgun that traces its lineage all the way back to 1961 when the Mossberg 500 series made its debut. The Mossberg 500 series is a series of shotguns that represents a range of varying hammerless, pump-action shotguns, all of which feature the same receiver. Variations were generally found in the barrel length, bore size, choke options, capacity, sights and stock/fore-end materials. The 500 series has always been marketed as multi-purpose shotguns designed for use in less-than-favorable conditions. As such, all Mossberg 500s feature interchangeable barrels, which provides for a number of different configurations that can quickly turn a 500 into a field gun, a slug gun, a defensive gun or a sport gun. Additionally, they are all easily disassembled to allow for easy cleaning and simple maintenance. The versatility of the line has even earned it a spot with military forces the world over – often as the Model 590A1, which typically features an aluminum trigger guard and safety as well as a heavy barrel.

One of the greatest selling points for the Mossberg 500 series, which includes the Mossberg 590A1, is the fact that they all boast Mil-Spec performance. The Mossberg 500 series is the only shotgun that has passed the United States Military's Mil-Spec 3443G standards, which just serves to illustrate the superior performance and reliability associated with the Mossberg 590A1 – must-have qualities for any shotgun.

As noted, the Mossberg 590A1 is a 12-gauge, pump-action shotgun with 20-inch heavy barrel alongside an overall length of 41 inches. The magazine tube provides for a nine-shell capacity for an overall capacity of 10 with one shell in the chamber. The aircraft-grade aluminum construction of the receiver provides for a light weight of just 7 1/4 pounds, which when combined with the synthetic stock makes for a shotgun that is easily handled by most experienced shooters. Other features include an aluminum trigger guard and ambidextrous thumb safety, ghost ring sights and a parkerized finish for enhanced protection against corrosion.

The Mossberg 590A1 is an excellent choice for:

- Personal and home defense

- Hunting

- Trap shooting

- Skeet shooting

- Collections

- Much more…

Additional Information

SKU N51663
Manufacturer Mossberg
Shotgun Type Pump Action
Gauge 12ga
Action Type Double
Barrel Length 20 Inches
Capacity 9+1
Safety Ambidextrous
Grips Polymer
Trigger Type Standard
Stock Type Fixed
Sights Ghost Ring
Ban Status Post-Ban
Condition Factory New
Construction Aluminum
Finish Parkerized
Accessory Rail No
Overall Length 41 Inches
Height No
Manufacturers Part Number 51663
Restrictions Age - 18+
Returns Accepted Yes - Must Not Be Modified Or Visibly Used
100 1 100 0
  1. USMC Issued review by Jose USMCR on 2/5/2013

    We used them as breaching tools and to guard POW's. Simple and light weight. The Sheriff office here issues them. Easy to repair and maintain. There are a ton of accessories for them. Cant go wrong. I prefer the 870 only because of the weight. The Mossberg has better sights and the safety is better located.

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