Rock Island X4 12ga Semi-Auto Shotgun - Black Finish

SKU:
120913484
|
UPC:
812285025728
|
MPN:
X4
$262.92
$329.00
(You save $66.08 )
Current Stock:
Adding to cart… The item has been added
Capacity-Rounds:
4
Caliber-Gauge:
12 Gauge
Hand:
Right Hand
Barrel Length:
18.5"
Barrel Length Range:
18" to 18.99"
OAL:
39.37"
Chamber:
3"
Weight:
7.05 lbs
Metal Finish Group:
Blued/Black
Action:
Semi-Auto
Stock Finish Group:
Black
Stock Description:
Fixed Pistol Grip
Metal Finish:
Fixed Pistol Grip
Sights:
Fiber Optic Front/Adjustable Rear
Weight Range:
7 lbs to 7.99 lbs
Barrel Description:
Bead
Chokes Included:
F,M,IC
Recoil Pad Type:
F,M,IC

The Rock Island X4 12ga semi-auto shotgun is a gas-operated workhorse built for hunters, sport shooters, and anyone who needs a reliable 12-gauge for defense or field use. With a lightweight aluminum receiver, polymer furniture, and a 4+1 round capacity, the X4 balances practicality with durability—it points naturally, cycles smoothly, and won't punish your shoulder with unnecessary weight. Whether you're running clays, working birds, or keeping one handy for home defense, this platform accepts both 2¾" and 3" shotshells without fussing, so you're never locked into one load.

The 18.5" barrel comes equipped with a vent rib and interchangeable choke tubes (Full, Modified, and Improved Cylinder), giving you the flexibility to dial in your pattern for different hunting scenarios or shooting disciplines. The fiber optic front sight and adjustable open rear sight are straightforward aiming tools—no unnecessary electronics, no complications. At just 7 lbs and 39.37" overall length, the X4 is compact enough for vehicle storage or tight hunting blinds but long enough to swing naturally in the field. The black anodized receiver and polymer furniture shed weather and stand up to regular use without flinching.

This is semi-auto shotgun design stripped down to what matters: proven gas-operated reliability, intuitive controls, and the kind of straightforward performance that builds trust. If you're shopping for a no-frills 12-gauge that works in the real world—not the marketing world—the Rock Island X4 delivers.

Key Features

  • Gas-operated semi-auto action for reliable cycling and reduced felt recoil
  • Lightweight aluminum receiver with black anodized finish
  • Accepts both 2¾" and 3" shotshells
  • 4+1 round capacity
  • 18.5" vent rib barrel with interchangeable chokes (Full, Modified, Improved Cylinder)
  • Fiber optic front sight and adjustable open rear sight
  • Polymer stock and furniture for durability and low maintenance
  • Compact overall length (39.37") for handling in vehicles and tight spaces

Specifications

Caliber12 Gauge
Action TypeGas-Operated Semi-Auto
Capacity4+1 Rounds
Barrel Length18.5 inches
Overall Length39.37 inches
Weight7 lbs
ReceiverAluminum, Black Anodized
StockPolymer
Barrel ProfileContoured Vent Rib
Choke TubesFull, Modified, Improved Cylinder
Front SightFiber Optic
Rear SightAdjustable Open
Shell Compatibility2¾" and 3" Shotshells

Frequently Asked Questions

What shotshell lengths does the Rock Island X4 handle?

The X4 chambers both 2¾" and 3" shotshells, so you can mix loads or stick with one length depending on your hunting or shooting needs.

Can I change the choke tubes on this shotgun?

Yes. The barrel comes threaded for interchangeable chokes, and you get Full, Modified, and Improved Cylinder tubes to match different ranges and game.

Is the Rock Island X4 suitable for home defense or hunting?

The compact 18.5" barrel, adjustable sights, and reliable gas-operated action make it capable in both roles. The choke versatility and 4+1 capacity give you flexibility for hunting or defensive situations.

How much does the Rock Island X4 weigh?

The X4 weighs 7 lbs, keeping it light enough for all-day hunting or easy vehicle storage without sacrificing the build quality you need for reliable performance.

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.