Mossberg 940 JM Pro 12 Gauge 24in Vent Rib Optic-Ready

About this product

The Mossberg 940 JM Pro is a semi-automatic 12 gauge shotgun built for competitive shooting and rapid follow-up shots. It ships with a 24-inch vent rib barrel and an optic-ready receiver cut for Shield RMSc-pattern micro dot sights. The design includes a durable gas system with specially finished internal parts and nickel-boron coatings for smooth operation and extended service intervals. External features include an adjustable synthetic stock, streamlined forend texturing, and competition-oriented controls for fast reloads and handling.

Key Specifications

• The action type is Semi-Auto.
• The gauge is 12 Gauge.
• The barrel measures 24 inches and features a vent rib.
• The chamber accepts 3 inch shells.
• The barrel finish is Matte Blued.
• The receiver finish is Tungsten Gray Anodized.
• The stock is an adjustable black synthetic design with an adjustable length of pull.
• The length of pull adjusts between 13 and 14.25 inches.
• The factory weight is approximately 7.75 pounds.
• Included sights are a HiViz TriComp fiber optic front sight; the receiver is optic-ready for micro dot mounting.

Designed with competition in mind, the 940 JM Pro combines a clean-running gas system, competition-oriented ergonomics, and practical sighting options to support fast, accurate strings of fire. Its combination of coated internals and adjustable ergonomics makes it well suited to shooters who demand reliable, repeatable performance in timed events or target-focused applications.

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