The Mossberg 940 JM Pro Security in 12 gauge (brand part no. 85144) is a semi-automatic shotgun built around a 24-inch vent rib barrel with a 3-inch chamber, giving competition and defensive shooters a fast-loading platform with quad-loading capability. Mossberg finishes the 940 JM Pro in Tungsten with a matte blue barrel, equips it with a HiViz CompSight fiber optic sight and an optic-ready receiver for Shield RMSc-pattern micro dots, and ships it with an extended choke. Among semi-auto shotguns in the semi-auto shotguns category, the 940 JM Pro Security favors shooters who want an adjustable competition-ready stock with quick-empty reloading.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Operates as a semi-automatic shotgun.
• Features a 24-inch vent rib barrel finished in matte blue.
• Feeds from a tube magazine with a 4+1 capacity.
• Ships with an extended choke.
• Equipped with a HiViz CompSight fiber optic sight.
• Receiver is optic-ready for Shield RMSc-pattern micro dots.
• Adjustable length of pull from 13 to 14.25 inches.
• Finished in Tungsten/Blue.
• Ships at approximately 10.4 pounds.

Frequently Asked Questions

Is this shotgun optics-ready? Yes, the receiver accepts direct mounting of Shield RMSc-pattern micro dot sights.

Can the stock be adjusted? Yes, length of pull adjusts from 13 to 14.25 inches.

Buy the Mossberg 940 JM Pro Security 12 Gauge Shotgun

An adjustable, optic-ready competition shotgun with quick-empty reloading is exactly what the 940 JM Pro Security delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.