Winchester Guns Sx4 Wgun 511250691 Sx4 Wtfwl 20 26 Timber**
- Capacity-Rounds:
- 4
- Caliber-Gauge:
- 20 Gauge
- Hand:
- Right Hand
- Barrel Length:
- 26"
- Barrel Length Range:
- 26" to 26.99"
- OAL:
- 47"
- Receiver Description:
- Realtree Timber Aluminum
- Chamber:
- 3"
- Weight:
- 6.10 lbs
- Metal Finish Group:
- Natural Camouflage
- Action:
- Semi-Auto
- Safety:
- Reversible Safety Button
- Stock Finish Group:
- Natural Camouflage
- Stock Description:
- Fixed
- Sights:
- Fiber Optic Front
- Weight Range:
- 6 lbs to 6.99 lbs
- Barrel Description:
- Vent Rib
- Chokes Included:
- F,M,IC
- Choke Configuration:
- Invector-Plus Flush
The Winchester SX4 in 20 gauge is a modern autoloader built for hunters who want reliable performance without excessive recoil. This gas-operated shotgun harnesses Winchester's proven Active Valve system—the same operating principle that made the SX3 a workhorse in the field—refined with improved balance and internal components for smoother cycling and faster follow-up shots. The 20-gauge chambering and 26-inch barrel strike a practical balance for upland game and light waterfowl work, delivering the handling of a lighter gun without compromising pattern integrity.
Winchester dressed the SX4 in Realtree Timber camouflage across the aluminum alloy receiver and chrome-plated barrel, giving you authentic woodland coverage that blends naturally in mixed hardwood and brush. The composite stock resists weather and dings better than wood, and the Inflex recoil pad cushions the gun's push—important on a 20 gauge where shot-to-shot comfort matters for accurate, confident shooting. A TRUGLO fiber-optic front sight helps you track moving targets in low light, while three Invector-Plus choke tubes let you dial in the right constriction for your load and distance.
Winchester engineered this gun for real hunting conditions. The larger cocking handle and bolt release speed up your reload, the reversible safety accommodates left or right-hand shooters without fumbling, and the widened trigger guard opening makes room for heavy gloves when the weather turns cold. Length-of-pull spacers let you customize fit, and sling swivel studs are already installed so you can get afield quickly. At 6 lbs 10 oz, it stays light enough to carry all day without wearing you out.
Key Features
- Active Valve gas-operated system for reliable, low-recoil cycling
- Inflex recoil pad reduces felt kick and fatigue
- Chrome-plated chamber and bore for durability and easier cleaning
- TRUGLO fiber-optic front sight for visibility in dim light
- Three Invector-Plus choke tubes included for pattern flexibility
- Reversible safety button works for both right and left-hand shooters
- Larger cocking handle and bolt release for faster operation
- Widened trigger guard opening accommodates gloved fingers
- Length-of-pull spacers allow custom fit adjustment
- Sling swivel studs pre-installed
- Realtree Timber camouflage finish on receiver, barrel, and composite stock
Specifications
| Gauge | 20 |
| Chamber Length | 3 inch |
| Barrel Length | 26 inches |
| Overall Length | 47 inches |
| Length of Pull | 14 1/4 inches (adjustable with spacers) |
| Drop at Comb | 1 3/4 inches |
| Drop at Heel | 2 inches |
| Weight | 6 lbs 10 oz |
| Magazine Capacity | 4 rounds (2 3/4 inch shells) |
| Receiver | Aluminum alloy, Realtree Timber finish |
| Barrel | Chrome-plated, ventilated rib, Realtree Timber finish |
| Stock | Composite, Realtree Timber finish |
| Action Type | Gas-operated with Active Valve system |
| Included Chokes | 3 Invector-Plus choke tubes |
Frequently Asked Questions
What gauge and shell capacity does the Winchester SX4 20-gauge have?
This SX4 is chambered in 20 gauge with a 3-inch chamber, holding 4 rounds of 2 3/4-inch shells in the magazine. The 20-gauge offers lighter recoil and a softer shooting experience compared to 12-gauge while still delivering effective patterns for upland and light waterfowl hunting.
Can I adjust the length of pull on this shotgun?
Yes. The SX4 comes with length-of-pull spacers that allow you to customize the fit to your frame. The stock length of pull is 14 1/4 inches, and you can adjust it to suit your proportions or add layers of clothing.
Is the safety button designed for left-handed shooters?
Yes, the safety button is reversible, so you can configure it for either right or left-hand operation without any gunsmith work. This makes the gun equally accessible to shooters of either handedness.
What sights and chokes come with the SX4?
The shotgun includes a TRUGLO fiber-optic front sight to help you pick up the bead in lower light, and three Invector-Plus choke tubes so you can match constriction to your intended use and shot size.
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.

