Out of stock
Mossberg JM Pro 12 Gauge 24" Black/Grey 9-Round Shotgun
$1,029.67
$1,295.00
(You save
$265.33
)
- Capacity-Rounds:
- 9
- Caliber-Gauge:
- 12 Gauge
- Finish-Color:
- Black
- Barrel Length:
- 24"
- Barrel Length Range:
- 24" to 24.99"
The Mossberg JM Pro 12 Gauge semi-automatic shotgun is built from the ground up for competitive 3-gun shooters who demand speed, reliability, and modularity. This 24-inch barrel model arrives optic-ready with patent-pending receiver cuts and a removable cover plate designed to accept Shield RMSc-pattern micro dot sights, giving you the mount flexibility to dial in your preferred aiming system without custom gunsmithing. With a 9-round capacity, adjustable length of pull, and a clean-running gas system with specially finished internal components, the JM Pro delivers the reliability and ergonomic refinement that competition demands.
From the loading port to the magazine release, every control on the JM Pro is engineered for speed. The competition-level loading port elevator and follower make quad loading smooth and intuitive, while the quick-empty magazine release keeps your transition times sharp. The gun ships with a set of Briley choke tubes and a HIVIZ TriComp fiber optic front sight, giving you versatility across different shooting disciplines and course layouts. The drilled and tapped receiver opens the door to additional mounting options as your setup evolves.
The JM Pro's synthetic stock and forend wear Mossberg's signature texturing for confident handling in any condition, and the adjustable stock drop system lets you fine-tune your cheek weld for the way you actually shoot. Available in black and grey, it's purpose-built for the shooter who wants a semi-auto that won't slow them down on the clock.
Key Features
- Optic-ready receiver with Shield RMSc-pattern mount compatibility
- Removable cover plate for easy sight installation and swaps
- 9-round magazine capacity with quick-empty release
- Competition-optimized loading port elevator and follower
- Clean-running gas system with specially finished internal parts
- Adjustable length of pull (13–14.25 inches) and stock drop system
- Drilled and tapped receiver for additional mounting flexibility
- Briley choke tube set included
- HIVIZ TriComp fiber optic front sight
- Textured synthetic stock and forend for secure grip
Specifications
| Gauge | 12 |
| Action Type | Semi-Auto Gas |
| Chamber Size | 3 inch |
| Barrel Length | 24 inches |
| Barrel Finish | Matte Blue |
| Barrel Type | Vent Rib |
| Magazine Capacity | 9+1 |
| Overall Length | 44.75 inches |
| Weight | 7.75 lbs |
| Length of Pull (Adjustable) | 13–14.25 inches |
| Stock | Synthetic (Black) with Adjustable LOP and Cast/Drop |
| Chokes | Briley Choke Tube Set |
| Front Sight | HIVIZ TriComp Fiber Optic; Optic-Ready (Shield RMSc) |
| Receiver | Drilled and Tapped |
Frequently Asked Questions
Is the Mossberg JM Pro optic-ready, and what sight mounts does it support?
Yes. The JM Pro ships with a removable cover plate and patent-pending receiver cuts designed to accept Shield RMSc-pattern micro dot sights. The receiver is also drilled and tapped, so you have additional mounting options as your setup evolves.
What chokes come with the JM Pro 12 Gauge?
The JM Pro ships with a set of Briley choke tubes, giving you options to dial in your shot pattern for different shooting situations.
Can I adjust the stock on this shotgun?
Yes. The JM Pro features an adjustable length of pull ranging from 13 to 14.25 inches, as well as an adjustable stock drop system so you can fine-tune fit and cheek weld to your preference.
What's included with the gun?
The JM Pro ships with a set of Briley choke tubes and a HIVIZ TriComp fiber optic front sight. It is optic-ready and accepts Shield RMSc-pattern micro dot sights via the removable cover plate.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
- Prior to placing an order, it is the buyer's responsibility to understand and adhere to their state's firearm regulations.
- The buyer should verify with their receiving dealer that the chosen firearm is legally permissible in their state.
- The buyer is accountable for any transfer fees or background check charges imposed by the receiving dealer. If the designated dealer declines to accept the firearm delivery, the buyer assumes responsibility for shipping costs to retrieve the firearm and resend it to an accommodating dealer.
- Handguns will be shipped using air transportation, while long guns can be shipped using ground methods. If your order includes a mix of firearm and non-firearm items, BOSQUE Outdoors will send the firearm(s) to your selected FFL dealer and the remaining non-firearm items to your billing address.
- Firearms cannot be returned to BOSQUE Outdoors; please contact the manufacturer for warranty claims.
- Firearms refused by the FFL Dealer or which cannot be transferred due to a failed background check are subject to a $75 restocking fee plus 10% of the purchase price.
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