Winchester Guns Sx4 Wgun 511252291 Sx4 Lh 12-3.5 26 Blk
- Capacity-Rounds:
- 4
- Caliber-Gauge:
- 12 Gauge
- Hand:
- Left Hand
- Finish-Color:
- Black
- Barrel Length:
- 26"
- Barrel Length Range:
- 26" to 26.99"
- OAL:
- 49"
- Chamber:
- 3.5"
- Weight:
- 7.20 lbs
- Action:
- Semi-Auto
- Safety:
- Crossbolt
- Stock Finish Group:
- Black
- Sights:
- TruGlo Fiber Optic Front
- Weight Range:
- 7 lbs to 7.99 lbs
- Barrel Description:
- Vent Rib Chrome-Lined
- Chokes Included:
- F,M,IC
- Choke Configuration:
- Invector-Plus Flush
The Winchester SX4 left-hand 12-gauge shotgun is purpose-built for lefty hunters and shooters who've waited too long for a truly ambidextrous semi-auto. This is not a right-hand gun retrofitted with a safety button—Winchester engineered the entire SX4 LH action, controls, and ergonomics from the ground up for left-hand operation, delivering the same speed, reliability, and handling as the company's celebrated SX3 platform without compromise.
The 26-inch barrel and 3.5-inch chamber make this a versatile choice for waterfowl, upland birds, and clay shooting. Gas-operated with Winchester's proven Active Valve system, the SX4 cycles cleanly across a broad range of ammunition while keeping recoil manageable. The composite stock and forearm wear a non-glare matte black finish that blends into hunting conditions and won't spook game. TRUGLO fiber-optic front sight aids target acquisition in low light, and the Inflex Technology recoil pad absorbs punishment so you stay steady for the next shot.
Left-handed shooters will appreciate controls designed for speed and certainty: enlarged cocking handle, bolt release, and reversible safety button are all positioned and sized to function smoothly even in cold weather or wet conditions. The grip and forearm feature textured panels that prevent slipping whether you're wearing gloves or not. Length-of-pull spacers let you dial in fit, and three Invector-Plus choke tubes give you flexibility on the pattern and range you need for the day.
If you're a lefty who's defaulted to right-hand guns because that's all that's available, the SX4 LH is the upgrade you've been looking for—proven action, left-hand ergonomics, and nothing apologetic about it.
Key Features
- Left-hand action and controls engineered for left-hand shooters—not a retrofit
- Active Valve gas operation for reliable cycling and softer recoil
- 3.5-inch chamber handles 12-gauge 2¾-inch and 3-inch ammunition
- TRUGLO fiber-optic front sight for improved target acquisition
- Inflex Technology recoil pad reduces felt recoil
- Matte black composite stock and forearm—non-glare hunting finish
- Reversible safety button, enlarged cocking handle and bolt release for fast operation
- Textured grip and forearm panels for secure handling in all conditions
- Three Invector-Plus choke tubes included
- Length-of-pull spacers for custom fit
- Sling swivel studs
Specifications
| Brand | Winchester | |
| Model | SX4 Left-Hand | |
| Gauge | 12 | |
| Chamber | 3.5 inch | |
| Barrel Length | 26 inches | |
| Barrel Finish | Matte black, chrome-plated chamber and bore, ventilated rib | |
| Receiver | Aluminum alloy, matte black finish | |
| Action Type | Gas-operated (Active Valve system) | |
| Stock Material | Composite | |
| Choke Tubes Included | Three Invector-Plus (FMIC) | |
| Front Sight | TRUGLO fiber-optic | |
| Recoil Pad | Inflex Technology |
Frequently Asked Questions
Is this shotgun truly left-handed, or is the safety just reversible?
The SX4 LH is fully left-hand engineered—the entire action, controls, and ergonomic layout are designed for left-hand operation. The reversible safety, enlarged cocking handle, and bolt release work in concert with the left-hand action. This is not a right-hand gun with a swapped safety.
What ammunition does the SX4 LH accept?
The 3.5-inch chamber cycles both 2¾-inch and 3-inch 12-gauge ammunition. The Active Valve gas system is designed to function reliably across this range.
What chokes come with this gun?
The SX4 LH ships with three Invector-Plus choke tubes (FMIC—Full, Modified, and Improved Cylinder). Additional Invector-Plus chokes are widely available from Winchester and other manufacturers.
Does the stock fit adjustment for different shooter sizes?
Yes. Length-of-pull spacers are included, allowing you to customize the stock length to your dimensions.
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.

