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Mossberg 590A1 Mossberg 590A1 Mossberg 590A1
Mossberg 590A1 Mossberg 590A1 Mossberg 590A1
  • Unmatched durability and reliability
  • Proven track record
  • Simplicity
  • Quick change barrels
  • Wide aftermarket
  • Heavier than the standard 590
  • Notable price bump over the standard 590
Editor’s Note:

Tracing its roots back to the respected and venerable Mossberg 500, the 590A1 keeps the core of what makes the 500-series of shotguns so great and makes it even better. The U.S. military put out a request for a more durable pump-action shotgun that could stand up to the rigors of hard field use, and the 590A1 was born. Mossberg responded by adding a tough parkerized finish,  all metal trigger guard, thick-walled barrel, and stronger internals. It is an intuitive and easy to use pump-gun, but it is a bit on the heavy side due to the aforementioned features. The extra weight helps tame the harsh recoil of the 12 gauge round, making the shooting experience a little more pleasant. The ambidextrous tang safety makes the gun easy for all users to operate the gun. Its wide aftermarket also allows you to tailor the gun to your specific wants and needs. While the 590A1 isn’t the smoothest or lightest shotgun out there, it is an absolute tank, and you’d be hard pressed to find any firearm that will last as long and take as much punishment.

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Mossberg 590A1 Specs

Pump Action
Barrel Length
18.5in / 20in
Magazine Capacity
Magazine Included
Tubular Magazine / Yes
Magazine Type
12 Gauge
Black / Stainless
Front Sight
Bead / Ghost Ring
Rear Sight
Ghost Ring / None
Overall Length
36.1in / 39.5in / 41in
Choke Tubes / Plain
Stock Material
Polymer / Synthetic / Wood
7 lbs / 7.25 lbs

Mossberg 590A1 Features

Thick-walled barrel
All metal trigger guard
Sturdier internals
Quick change barrel
Bayonet lug
Ambidextrous safety

By The Numbers - Mossberg 590A1

Patterns well, but does not have adjustable chokes
Military proven reliability
Exceedingly wide aftermarket
Ambidextrous safety and intuitive feel

Hands-On Reviews & Related Post

Mossberg 590A1 Variations & Comparables

Mossberg 590 Mariner

Mossberg 590 Mariner


The Mossberg 590 Mariner takes the standard tried-and-true 590 and adds an eye-catching corrosion-resistant Marinecote finish for those looking to fend off moisture and rust.

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Mossberg 500 Combo Field/Security

Mossberg 500 Combo Field/Security


Usually coming in at under $400, the Mossberg 500 Field/Security pump-action shotgun is one of the most versatile guns you can buy for the money. This gun comes with two barrels, a 28-inch field barrel with interchangeable choke tubes and an 18.5-inch security barrel with a fixed choke. Having both barrels allows you to have a do-all gun that can cover anything from hunting to sporting to home defense. Mossberg makes the barrel change process simple and easy, with a single screw making the barrel swap a 60-second affair that takes no tools. The ambidextrous tang safety makes this gun intuitive for most users, but the rest of the gun is pretty standard fare when it comes to ergonomics. The Mossberg 500 has been the gold standard for basic shotguns since the 60s, and it has the aftermarket to prove that. If you need a shotgun to cover all the bases, this is it.

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Mossberg 590A1 Retrograde

Mossberg 590A1 Retrograde


The Mossberg 590A1 retrograde takes one of the most durable and proven shotguns in the world and dresses it up to the nines. Classic style walnut furniture gives this workhorse shotgun an old-school appeal without sacrificing any of its ability to tackle any job.

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Mossberg Maverick 88

Mossberg Maverick 88


The Mossberg Maverick 88 is the true everyman’s shotgun. It is affordable, reliable, durable, and is built on the design of one of the most proven shotguns in the world. This is the ultimate bang for your buck in the shotgun world and possibly one of the best deals in the firearms world as a whole.

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final verdict

Mossberg introduced their model 500 in 1961. It is a time-tested design that has been slowly improved upon over the years. The 590A1 is the result of the U.S. military wanting a heartier version of one of the world’s most profound pump-action shotguns. To accomplish this, Mossberg beefed up the entire gun. As a result, it is a bit heavier, coming in at around 7 to 7.5 pounds depending on the exact model. That extra weight not only lends more durability but also helps reduce the noticeable recoil that 12 gauge produces. There are various trims of the gun, with different stocks, sights, barrel lengths, and capacities to choose from. If you can’t find exactly what you are looking for, the massive aftermarket for Mossberg shotguns has you covered. So what is the end result? It is a shotgun that can survive a nuclear apocalypse, let alone anything you could hope to throw at it. I keep one around because I know it will outlast me.

– Wyatt Sloan, Jr. Editor

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