Mossberg 940 JM Pro 12GA 3” 18.5″ Semi-Auto 3-Gun Competition Shotgun

SOLD FOR: $750

WOA#: WY231005SJ023

Make: Mossberg

Model: 940 JM Pro

Serial Number: 94R0009453

Year of Manufacture: Modern

Gauge: 12

Action Type: Semi-Auto, Blowback, 9+1 Capacity

Markings: The left side of the receiver is marked “MOSSBERG / 940 ™ 12GA / NORTH HAVEN, CT USA”, “94R0009453”.  The right side of the receiver is marked “940 JM PRO”.  The right side of the barrel has a 3 line warning.  The left side of the barrel is marked “MOSSBERG CHAMBERED FOR 2 ¾ AND 3 IN. SHELLS / 12 GA.-24 IN. ACCU-CHOKE ™”.  The choke is marked “CYL”.

Barrel Length: 24” Vent-Rib. 25” with Accu-Choke.

Choke: Cylinder-12 Choke, Accu-Choke Adjustable System

Sights / Optics: The front sight is a 3 aperture sight at the front of the serrated rib.  The top of the receiver is drilled, tapped, and filled.

Stock Configuration & Condition: The two piece stocks are checkered polymer with semi-pistol grip, straight comb, rubber recoil pad.  This shotgun has gold highlights on the trigger, safety, bolt release, charging handle, and magtube.  The LOP measures 13.75” from the front of the trigger to the back of the recoil pad. The stock rates in about Excellent overall condition.  There are no chips or cracks. There are a couple faint drag lines on the buttstock but overall the stocks appear pristine.

Type of Finish: Gray, Black

Finish Originality: Original

Bore Condition:  The smooth bore is bright. There is no visible erosion.

Overall Condition: This shotgun retains about 99% of its metal finish. The balance of the finish shows some minor operation wear from previous responsible use and storage.  The screw heads are sharp and pins are unmarred. The markings are clear. There are no notable defects on this shotgun.  Overall, this shotgun rates in about Excellent  condition. Please see photos for a better understanding of this shotgun’s condition.

Mechanics: The action functions correctly. We have not fired this shotgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance standards.

Box, Paperwork & Accessories: This shotgun comes with its installed CYL Accu-Choke.

Our Assessment:  The Mossberg 940 JM Pro is a competition-ready 12-gauge shotgun specifically designed with input from professional shooter Jerry Miculek, a living legend in the shooting sports world. The shotgun is engineered for rapid and reliable cycling, allowing for quick follow-up shots in high-stress, fast-paced environments—qualities that are indispensable in competitive shooting. Built upon Mossberg’s tried-and-true reputation for durability and reliability, the 940 JM Pro incorporates a set of cutting-edge features that set it apart from its competitors.

One of the standout features is its gas-operating system, which has been optimized for consistent performance with a variety of loads. The gas system’s self-regulating design requires less frequent cleaning and ensures reliable functioning over extended periods of use. A generous loading port, beveled for rapid reloading, along with an enlarged bolt handle and bolt release button, facilitates the kind of smooth operation that can make the difference between winning and losing in a competition.

Aesthetically, the 940 JM Pro catches the eye with its sleek design, incorporating a slim-profile forend and a stock adjustable for cast, drop, and length of pull. The shotgun’s capacity is also notable, with a 9+1 round configuration in its elongated magazine tube, providing the shooter with plenty of firepower for almost any competitive scenario.  With Nickel-Boron coated internal parts, this shotgun is built to perform without missing a beat in 3-Gun competitions.

Overall, the Mossberg 940 JM Pro offers an unmatched blend of speed, reliability, and adaptability, making it a top choice for competitive shooters.  It was built by a Champion and it was made for champions as the ultimate competition shooter.  Please see our photos and good luck on your bid! – L.S.

Mossberg 940 JM Pro 12GA 3” 18.5" Semi-Auto 3-Gun Competition Shotgun
Mossberg 940 JM Pro 12GA 3” 18.5″ Semi-Auto 3-Gun Competition Shotgun