# Mossberg 990 Aftershock SPX 12 Gauge 18.5in Matte Black

**Brand:** Mossberg
**Category:** Semi-Automatic Shotguns
**Caliber:** 12 Gauge

## Specifications

- **Caliber:** 12 Gauge
- **Barrel Length:** 18.5"
- **UPC:** 015813830133
- **SKU:** UCHGDDcL

## Description

The Mossberg 990 Aftershock SPX is a semi-automatic shotgun chambered in 12 gauge with an 18.5-inch barrel and a 3-inch chamber. It has a 7+1 round capacity and comes with an integrated heat shield, fiber optic sights, and an optic-ready cut compatible with the Shield RMSc footprint. The synthetic AfterShock grip and matte black finish round out a purpose-built defensive configuration.

### Key Specifications
- **Brand**: Mossberg
- **Model**: 990 Aftershock SPX
- **Caliber**: 12 Gauge
- **Action**: Semi Auto
- **Capacity**: 7+1 Rounds
- **Barrel Length**: 18.5"
- **Chamber**: 3"
- **Color/Finish**: Matte Black

### Detailed Features
- 18.5-inch barrel with integrated heat shield
- Optic-ready cut with Shield RMSc footprint
- Fiber optic front sight
- Synthetic AfterShock grip stock
- Fixed choke

## Frequently Asked Questions

**Q: What caliber is the 990 Aftershock SPX?**

A: The Mossberg 990 Aftershock SPX is chambered in 12 gauge with a 3-inch chamber.

**Q: Who makes the 990 Aftershock SPX?**

A: The 990 Aftershock SPX is made by Mossberg.

**Q: What type of firearm is the 990 Aftershock SPX?**

A: It is a semi-automatic shotgun with an 18.5-inch barrel and a matte black finish.

**Q: What is the barrel length of the 990 Aftershock SPX?**

A: The barrel is 18.5 inches and includes an integrated heat shield.

**Q: How many rounds does the 990 Aftershock SPX hold?**

A: It has a 7+1 round capacity.

**Q: Is the 990 Aftershock SPX optic-ready?**

A: Yes. It has an optic-ready cut compatible with the Shield RMSc footprint.

**Q: Where can I buy the 990 Aftershock SPX?**

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.*

> The barrel sticks up above and so if you're manipulating you can burn your hand.
>
> — [Pew Pew Tactical](https://www.youtube.com/watch?v=wqoHW-sNqIs&t=231s)

> It doesn't really care for bird shot that much.
>
> — [Pew Pew Tactical](https://www.youtube.com/watch?v=wqoHW-sNqIs&t=416s)

> Good crisp brake. And there is a reset. It's pretty light, but it is tactile and audible.
>
> — [Pew Pew Tactical](https://www.youtube.com/watch?v=wqoHW-sNqIs&t=713s)

> It isn't as snag-free as the 940 ProTactical SPX.
>
> — [Pew Pew Tactical](https://www.youtube.com/watch?v=wqoHW-sNqIs&t=493s)

> The reliability, it hasn't been 100%, but it's been good.
>
> — [Pew Pew Tactical](https://www.youtube.com/watch?v=wqoHW-sNqIs&t=815s)

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the Mossberg 990 Aftershock SPX tend to appreciate its optic-ready platform in a compact shotgun package. The heat shield and ghost ring or fiber optic sight setup get consistent praise for home defense and range use, and the 7+1 capacity is a common talking point for those who prioritize round count in a semi-auto shotgun.

Ergonomics split the crowd somewhat. The AfterShock grip is comfortable for some but takes adjustment for shooters used to a traditional stock. Cycling reliability with various shell types is generally reported as solid, though a few owners note the gun prefers standard-pressure loads over light target loads for consistent cycling.

Value perception is mixed. Those who compare it to higher-priced tactical semi-auto shotguns consider it well-priced. Others feel the trigger and controls could be more refined for the asking price, and aftermarket support for the 990 platform is thinner than for more established tactical shotgun designs.

## Pricing

**11 offers available**

| Vendor | Price |
|--------|-------|
| Grabagun Com | $909.99 |
| Palmettostatearmory Com | $919.99 |
| Shootingsurplus Com | $929.91 |
| Gritrsports Com | $929.99 |
| Kygunco Com | $942.42 |
| Impactguns Com | $948.59 |
| Buds Gun Shop | $960.99 |
| Guns Com | $1028.99 |
| Brownells | $1029.99 |
| Ar 15 Discounts Com | $1204.00 |

*...and 1 more offers*

## Similar Products

- [Mossberg 990 Aftershock SPX 12 Gauge 14.375in Black](https://gunsnation.com/p/mossberg-990-aftershock-spx-12-gauge-14-375in-black/UCHGDDbq)
- [Mossberg 990 Aftershock 12 Gauge 18.5in Black](https://gunsnation.com/p/mossberg-990-aftershock-12-gauge-18-5in-black/UCHGDDad)
- [Mossberg 990 Aftershock SPX 12 Gauge 14.375in OD Green](https://gunsnation.com/p/mossberg-990-aftershock-spx-12-gauge-14-375in-od-green/UCHGDDcE)
- [Mossberg 990 Aftershock SPX 12 Gauge 14.375in Flat Dark Earth](https://gunsnation.com/p/mossberg-990-aftershock-spx-12-gauge-14-375in-flat-dark-earth/UCHGDDc7)
- [Mossberg 990 Aftershock 12 Gauge 14.75in Black](https://gunsnation.com/p/mossberg-990-aftershock-12-gauge-14-75in-black/UCHGDDak)
- [Mossberg 990 Aftershock 12 Gauge 14.75in Black](https://gunsnation.com/p/mossberg-990-aftershock-12-gauge-14-75in-black/UCHGDDaM)

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