Winchester SX4 | 20 Gauge | 28″ Barrel | Synthetic

The Winchester SX4 is a semi-automatic field shotgun designed with hunting and field use in mind. It features a synthetic, matte-black stock with Inflex Technology recoil pad and a 28″ vent-rib, back-bored barrel finished in matte black. The SX4 uses the Invector-Plus choke system and a TruGlo fiber-optic front sight for quick target acquisition in variable light.

Ergonomic updates over earlier SX models include a redesigned grip, larger functional controls and an ambidextrous safety, making the SX4 suited for extended days afield. Typical applications for this configuration include upland bird hunting and sporting-clays style practice.

Product Specifications

• The manufacturer is Winchester.
• The model is SX4.
• The gauge is 20 Gauge.
• The action is Semi-Auto.
• The barrel measures 28 inches and features a vent rib and back-bored profile.
• The chamber accepts 3″ shells.
• The barrel finish is Matte Black.
• The stock material is Synthetic with a matte-black finish.
• The stock includes an Inflex Technology recoil pad designed to disperse and reduce perceived recoil.
• The shotgun includes F, M, IC chokes.
• The choke system is Invector-Plus Flush.
• The sights are a TruGlo fiber-optic front sight.
• The overall length measures 49 inches.
• The receiver material is Aluminum Alloy.
• The UPC is 048702009969.

The SX4 blends modern gas-operated cycling, wearable synthetic furniture and an Invector-Plus choke system for consistent on-target performance in the field. Its larger controls and reversible safety make it accessible for a wide range of shooters while the matte finish and non-glare surfaces keep the profile low where concealment matters.

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