Citadel Mariner Cit Frmn1220syn Mariner 12g 18.5 4r Blk

Citadel Mariner 12 Gauge 18.5" Shotgun, 4-Round, Black (FRMN1220SYN)

Citadel
SKU:
126817172
|
UPC:
682146897944
|
MPN:
FRMN1220SYN
$246.02
$279.00
(You save $32.98 )
Current Stock:
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Product Specifications
Hand:
Right Hand
Finish-Color:
Black
Capacity-Rounds:
4
Barrel Length:
18.50"
Caliber-Gauge:
12 Gauge
Barrel Length Range:
18" to 18.99"
Action:
Pump
Barrel Description:
Full Heat Shield
Chamber:
3"
OAL:
39"
Receiver Description:
Picatinny Rail
Sights:
Blade Front/Adj Rear
Weight:
6.90 lbs
Weight Range:
6 lbs to 6.99 lbs
Stock Description:
Fixed
Stock Finish Group:
Black
Product Overview

The Citadel Mariner 12 gauge shotgun is a pump-action workhorse built for serious shooters who need reliable performance in a compact, manageable package. With an 18.5-inch barrel and 39-inch overall length, the Mariner handles like a rifle in tight spaces—perfect for home defense, tactical training, or hunting in brushy terrain where a shorter gun is an asset. Its synthetic furniture stands up to hard use and harsh conditions, while the nickel finish resists corrosion, making it a dependable choice whether you're running drills at the range or working in challenging environments.

Built on pump-action reliability that's proven across thousands of shotguns, the Mariner feeds 2¾- and 3-inch shells in its 4+1 capacity magazine tube—enough firepower for most jobs without excessive weight. Weighing 6.9 pounds, it balances quickly and points naturally. The gun ships with three interchangeable choke tubes, so you can tune your shot pattern for the distance and game you're hunting, or zero in on defensive performance at typical engagement ranges.

The Mariner comes configured for shooters who want to add optics and accessories: an adjustable rear sight mounted on a Picatinny rail lets you mount red dots, scopes, or backup irons, and a blade front sight keeps you running fast out of the box. A full-length barrel heat shield protects your support hand from burns during sustained fire or in the heat of the moment, and a side shell holder mounted on the receiver gives you quick access to spare rounds. All told, this is a no-nonsense platform that invites customization without forcing it.

Additional Information

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.