Mossberg 940 Pro JM 12 Gauge Semi-Auto Shotgun 9+1 24" Barrel

The Mossberg 940 Pro JM delivers competition-grade performance with Jerry Miculek's signature enhancements for rapid target acquisition and lightning-fast follow-up shots. This gas-operated semi-automatic shotgun combines Mossberg's proven reliability with professional-level features that serious competitors and tactical operators demand.

What Makes This Different

Unlike standard sporting shotguns, the 940 Pro JM features an optics-ready receiver machined from aircraft-grade aluminum with a tungsten gray Cerakote finish that resists corrosion and wear. The oversized gold controls allow instant manipulation even with gloves, while the adjustable shim stock system provides a custom fit for consistent cheek weld and sight alignment. Jerry Miculek's input shaped every aspect of this design, from the extended magazine tube to the competition-tuned gas system.

Key Features

• 9+1 capacity with 3-inch chamber capability for versatile ammunition options
• 24-inch barrel with extended choke tubes for precision pattern control
• Optics-ready receiver with pre-drilled and tapped mounting holes
• HiViz fiber optic front sight for rapid target acquisition in all lighting
• Black multicam synthetic furniture resists weather and impact damage
• Oversized gold bolt release and safety for competition-speed operation
• Adjustable shim stock system accommodates different shooter dimensions

The gas-operated action cycles reliably with loads from light target rounds to heavy waterfowl shells, maintaining consistent ejection patterns across the power spectrum. Competition shooters appreciate the smooth cycling that enables sub-second follow-up shots, while hunters benefit from the quick handling in dense cover. The synthetic stock construction eliminates wood's tendency to shift with temperature and humidity changes, maintaining zero consistency season after season.

Technical Specs

• Gauge: 12 gauge, 3-inch chamber
• Capacity: 9+1 rounds
• Barrel Length: 24 inches
• Overall Length: Approximately 44.5 inches
• Weight: Approximately 7.75 pounds
• Stock: Synthetic with adjustable shim system
• Finish: Tungsten gray Cerakote receiver, black furniture
• Sights: HiViz fiber optic front sight
• Chokes: Extended choke tubes included
• Action: Gas-operated semi-automatic

This shotgun represents Mossberg's commitment to competition excellence backed by Jerry Miculek's championship experience. The combination of enhanced controls, optics compatibility, and proven gas system creates a platform that performs consistently under pressure.