Mossberg 940 JM Pro 12 Gauge Semi-Auto Shotgun with 24" Vent Rib Barrel, Accu-Choke, and Multicam Finish
This Mossberg 940 JM Pro is a gas-operated, semi-automatic 12 gauge built around a competition-forward setup with a 24" vent rib barrel, fiber-optic front sight, and an extended tubular magazine that runs nearly to the muzzle. It is finished in a Multicam camo pattern on the synthetic stock and forend, with textured gripping panels in the pistol-grip area and forend for added control. Receiver markings include "940 JM PRO" and "940 12GA / NORTH HAVEN, CT USA".
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some minor and superficial scratches and blemishes present. The bore is clean and shiny.
What’s Included
- Original manual
- Cable lock
The 24" barrel is marked for 2 3/4 and 3" shells and is fitted with a vent rib and a green fiber-optic front sight for quick visual pickup. At the muzzle, the Accu-Choke system is present, with a protruding choke tube that shows external wrench notches and a colored band.
This 940 JM Pro uses a gas-operated action and features an oversized charging handle that is easy to locate and manipulate. The shotgun is configured with a tubular magazine and an extended magazine tube that reaches nearly to the muzzle, supporting its 9+1 capacity.
The synthetic furniture is finished in a Multicam camo pattern, and the stock is marked "MULTICAM". The pistol-grip area and forend include textured gripping panels, and the recoil pad features a molded "M" logo.
Made in the United States, this example combines the 940 JM Pro platform with a practical barrel length, high-visibility front sight, and extended magazine setup in a consistent Multicam finish.




