# Mossberg 590A1 Tactical Pump Shotgun - 12 Ga, 18.5" Heavy Barrel

**Brand:** Mossberg
**Category:** Pump-Action Shotguns
**Caliber:** 12 Gauge

## Specifications

- **Caliber:** 12 Gauge
- **Barrel Length:** 18.5"
- **Capacity:** 6 rounds
- **Finish:** Parkerized
- **Weight:** 112 oz
- **Overall Length:** 39.5"
- **UPC:** 015813507653
- **SKU:** UCHGBrj3

## Description

The Mossberg 590A1 is a pump-action 12-gauge with an 18.5-inch heavy-walled barrel, 6+1 capacity, and ghost ring sights. It weighs 7 lbs, measures 39.5 inches overall, and has a black synthetic stock with a parkerized finish.

### Key Specifications:
- **Brand:** Mossberg
- **Model:** 590A1
- **Caliber/Gauge:** 12 Gauge
- **Action Type:** Pump Action
- **Barrel Length:** 18.5 inches
- **Chamber Size:** 3 inches
- **Capacity:** 6+1 rounds
- **Weight:** 7 lbs 
- **Overall Length (OAL):** 39.5 inches 
- **Sights:** Ghost Ring 
- **Stock Material:** Synthetic (Black Finish)

### Features
The heavy-walled barrel is stiffer than standard shotgun barrels, which reduces flex during firing and contributes to durability over a high round count. Ghost ring sights provide a fast, clear sight picture in low-light conditions, a meaningful advantage over bead-only setups. The M-Lok forend accepts lights, grips, and other accessories without replacing the factory furniture.

The parkerized finish handles moisture and field use without showing wear quickly. At 7 lbs the gun is manageable in confined spaces while remaining stable under recoil.

## Frequently Asked Questions

**Q: What gauge is the Mossberg 590A1?**

A: The 590A1 is chambered in 12 gauge with a 3-inch chamber.

**Q: What is the barrel length of the Mossberg 590A1?**

A: This model has an 18.5-inch heavy-walled barrel.

**Q: How many rounds does the Mossberg 590A1 hold?**

A: It has a 6+1 capacity.

**Q: Who makes the 590A1?**

A: The 590A1 is made by Mossberg.

**Q: What type of firearm is the Mossberg 590A1?**

A: It is a pump-action shotgun with a black synthetic stock and parkerized finish.

**Q: Does the Mossberg 590A1 have ghost ring sights?**

A: Yes, this model comes with ghost ring sights.

**Q: Where can I buy the Mossberg 590A1?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> Nice thing about the ghost ring sights on these guns is that you know you should be able to get a little bit of precision and they do pick up quite nice.
>
> — [Iraqveteran8888](https://www.youtube.com/watch?v=iu1GuKhC7bY&t=174s)

> Much much better in terms of the group out of this gun that little rigid 14 inch barrel with the modified choke its grouping that buckshot really nice.
>
> — [Iraqveteran8888](https://www.youtube.com/watch?v=iu1GuKhC7bY&t=265s)

> I think if this were going to be a truck gun or a home defense gun or something like that I think that's probably the round that I would stick with there.
>
> — [Iraqveteran8888](https://www.youtube.com/watch?v=iu1GuKhC7bY&t=273s)

> You've got a lowly trigger guard you don't have to worry about those tabs breaking off like you would on a plastic trigger guard.
>
> — [Iraqveteran8888](https://www.youtube.com/watch?v=iu1GuKhC7bY&t=77s)

## What Customers Say

*AI-generated insights from customer reviews*

Owners consistently praise the 590A1 for its reliability. Cycling different ammunition types without issues is the most repeated positive note. The heavy-wall barrel and parkerized finish get credit for durability under hard use, and the 18.5-inch barrel is called out as a practical length for home defense situations.

The action is widely described as smooth, and the ghost ring sights are preferred over basic bead sights for defensive use. Weight is the primary complaint. At 7 lbs some owners find it tiring during extended carry or drills. A few reviewers mention preferring semi-auto platforms for ease of use. Overall feedback leans strongly positive for reliability and build quality, with weight and user-friendliness the main trade-offs.

## Pricing

**13 offers available**

| Vendor | Price |
|--------|-------|
| Grabagun Com | $629.99 |
| Gritrsports Com | $636.99 |
| Shootingsurplus Com | $637.90 |
| Buds Gun Shop | $641.49 |
| Centerfiresystems Com | $648.99 |
| Impactguns Com | $660.99 |
| Palmettostatearmory Com | $668.99 |
| Deguns | $677.99 |
| RK Guns | $679.99 |
| Brownells | $683.99 |

*...and 3 more offers*

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- [Mossberg 590A1 Tactical Pump Shotgun, 12 GA, Magpul SGA Stock](https://gunsnation.com/p/mossberg-590a1-tactical-pump-shotgun-12-ga-magpul-sga-stock/UCHGBuLh)
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- [Mossberg 590A1 Tactical M-LOK 12 GA Pump Shotgun - Home Defense Pro](https://gunsnation.com/p/mossberg-590a1-tactical-m-lok-12-ga-pump-shotgun-home-defense-pro/UCHGBrjY)

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*Data from [GunsNation](https://gunsnation.com)*