# Mossberg 940 JM Pro: 12GA Semi-Auto Shotgun - Black MultiCam

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

## Specifications

- **Caliber:** 12 Gauge
- **Barrel Length:** 24"
- **Capacity:** 9 rounds
- **Finish:** Matte Blue
- **Weight:** 124 oz
- **Overall Length:** 44.75"
- **UPC:** 015813851138
- **SKU:** UCHGDJ58

## Description

The Mossberg 940 JM Pro is a 12-gauge semi-automatic shotgun with a 24-inch barrel and 9+1 capacity. It's designed around competitive shooting. Jerry Miculek had direct input into the feature set. The clean-running gas-vent system cycles reliably under varied conditions and ammo types, which matters in matches where you can't control what's available.

### Key Specifications
- **Model:** 940 JM Pro
- **UPC:** 015813851138
- **Gauge:** 12 GA
- **Action Type:** Semi-Automatic
- **Chamber Size:** 3"
- **Capacity:** 9+1 rounds
- **Barrel Length:** 24"
- **Overall Length:** 44.75"
- **Weight:** 7.75 lbs.
- **Finish:** Matte Blued Receiver, Black Multicam Stock/Handguard

### Detailed Features
The quick-empty magazine release and quad-loading-optimized design keep reloads fast during competition. Adjustable length of pull ranges from 13" to 14.25", so different-sized shooters can fit the gun without a spacer kit search. The receiver is drilled and tapped for optics mounting, and Briley choke tubes come included for pattern flexibility.

At 7.75 lbs and 44.75" overall, the 940 JM Pro is not light, but the weight helps absorb recoil during extended strings. The MultiCam stock and handguard hold up in outdoor conditions.

### Usage Scenarios
- Competitive 3-gun and shotgun-specific events where the reload speed and reliable cycling are direct performance factors.
- Home defense where the 9+1 capacity and semi-auto action suit demanding scenarios.
- Range training with varied loads, where the gas system's tolerance for different ammunition is a practical advantage.

## Frequently Asked Questions

**Q: What caliber is the 940 JM Pro?**

A: The 940 JM Pro is chambered in 12 gauge with a 3-inch chamber.

**Q: What is the barrel length of the 940 JM Pro?**

A: It has a 24-inch barrel.

**Q: How many rounds does the 940 JM Pro hold?**

A: It has a 9+1 capacity.

**Q: Who makes the 940 JM Pro?**

A: The 940 JM Pro is made by Mossberg.

**Q: What type of firearm is the 940 JM Pro?**

A: It is a semi-automatic shotgun.

**Q: Is the 940 JM Pro optic-ready?**

A: Yes. The receiver is drilled and tapped for optics mounting.

**Q: Where can I buy the 940 JM Pro?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

The Mossberg 940 JM Pro gets broadly positive feedback from competitive shooters. The cycling reliability is the most consistent praise. Owners report minimal jams across different load types, which is exactly what you need in a match. The MultiCam finish also gets positive remarks for outdoor aesthetics and durability.

Weight is the most common criticism. At 7.75 lbs, some owners find extended carry or all-day matches tiring. A few shooters have also mentioned wanting more aftermarket customization options beyond what ships from the factory. Overall the reception leans positive, with most owners treating the weight as a manageable tradeoff against the cycling performance.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Guns Com | $947.99 |

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