Mossberg 940 JM Pro Shotgun 12 ga 3″ Chamber 9rd Magazine 24″ Barrel Black
$997.08
The Mossberg 940 JM Pro is a competition-ready 12 gauge shotgun with an optic-ready receiver, durable gas system, and 24 inch barrel for 3-gun competitions.
2 in stock
The Top Gun for 3-Gun – Now Comes Optic-Ready. Patent-pending receiver cuts and a removeable cover plate allow direct mounting of Shield RMSc-pattern micro dot sights for imporved eye alignment and faster target aquisiton. Inside every 940 JM Pro you will also find a new durable gas system specially-coated or finished internal parts for smooth operation and a competition-level loading port elevator and follower. Outside a user-adjustable stock and streamlined forend sport Mossberg signature texturing while a host of stylized functional components combine for competition – optimizing speed accuracy and durability.
Frequently asked questions
What are the Mossberg 940 JM Pro’s key specifications?
It is a 12-gauge shotgun with a 3-inch chamber, 9-round magazine, 24-inch barrel, and black finish.
Is the Mossberg 940 JM Pro optic-ready?
Yes. Its receiver cuts and removable cover plate allow direct mounting of Shield RMSc-pattern micro dot sights.
What adjustable and competition-oriented features does it include?
It includes a user-adjustable stock, streamlined forend, competition-level loading port, elevator and follower, and a gas system with specially coated or finished internal parts.
How can I receive an online firearm order?
The firearm ships to a licensed FFL dealer of your choice, where you complete the required background check and paperwork in person. Local pickup is also available at BT Gun Company in Rubicon, Wisconsin.
| Weight | 10.500 lbs |
|---|---|
| Dimensions | 46.750 × 9.250 × 3.750 in |
| Manufacturer | Mossberg |
| Barrel Length | 24″ VR |
| Capacity | 9 + 1 |
| Action | Semi-Auto |
| Finish | Matte Blued |
| Caliber / Gauge | 12 Gauge |
| Overall Length | 44.75″ |
| Caliber | 12 Gauge |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

Reviews
Clear filtersThere are no reviews yet.