Mossberg 940 JM Pro 12 Gauge 24-Inch Shotgun

The Mossberg 940 JM Pro is a semi-automatic 12-gauge shotgun configured for target shooting and competition use. It combines a 24-inch vent-rib barrel and 3-inch chamber with a 9+1 capacity, adjustable synthetic stock, fiber-optic front sight, and an optic-ready receiver for Shield RMSc-pattern micro dot sights.

The tungsten-finished receiver and black synthetic stock provide a practical sporting configuration, while the adjustable length of pull supports fit customization. The shotgun also features internal choke tubes, a cylinder tube, a recoil pad, swivel studs, an oversized charging handle, and an elongated pinch-free elevator.

Key Specifications

• The shotgun uses a 12-gauge chambering for compatible shotshell loads.
• The action is semi-automatic for target-shooting applications.
• The barrel measures 24 inches and uses a vent-rib configuration.
• The chamber accepts shells up to 3 inches.
• The listed capacity is 9+1 rounds.
• The receiver is optic-ready for Shield RMSc-pattern sights.
• The stock is black synthetic with adjustable length of pull.
• The barrel has a matte blued finish.
• The shotgun includes an improved-cylinder tube.
• The front sight is a fiber-optic competition sight.

With its competition-oriented controls, adjustable stock, optic-ready receiver, and practical 24-inch barrel, the 940 JM Pro offers a focused configuration for shooters who want a capable 12-gauge platform with fit and sighting options built into the design.

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