Mossberg 940 JM Pro 9-Shot 12 Gauge Semi-Auto Shotgun, 24" Vent-Rib Barrel, Tungsten-Gray Receiver
Developed with champion shooter Jerry Miculek, the Mossberg 940 JM Pro is built for fast, reliable competition use. A redesigned gas system runs for 1,500+ rounds between cleanings, nickel-boron-coated internals enhance smoothness, and the enlarged loading port speeds reloads. This full-size, 9+1-capacity model comes finished in a distinctive tungsten-gray anodized receiver with a matte-blued barrel and includes a Briley extended choke set to fine-tune your pattern on the clock.
Condition
Overall Condition: Excellent – shows only faint signs of any prior use or handling.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
What’s Included
- Mossberg 940 JM Pro owner's manual
- 940 JM Pro quick-reference safety/feature card
- Briley extended Accu-Choke set (Cylinder, Improved Cylinder, Modified) in yellow plastic case
- Stock spacer & shim kit (in clear plastic bag)
- Cable gun lock
The 24" chromoly steel barrel is threaded and supplied with Briley extended chokes, letting you tailor spread for everything from close steel to longer slug stages. The HIVIZ TriComp front sight ships with nine interchangeable light pipes so you can match color and diameter to lighting or personal preference.
An oversize charging handle, bilateral shell-catch release, and top-tang safety keep controls intuitive under pressure. The synthetic stock uses spacers and shims to adjust length of pull, drop, and cast; textured grip panels and a ventilated recoil pad add comfort during high-round-count sessions.
The aluminum receiver’s tungsten-gray anodized finish resists corrosion while standing out on the line. Inside, nickel-boron-coated operating parts reduce friction and speed cleaning. Combined with the self-cleaning gas system, the 940 JM Pro stays on pace through extended matches without maintenance interruptions.