Winchester SX4 Defender 12 Gauge 18.5-Inch FDE Shotgun

The Winchester SX4 Defender is a 12-gauge semi-automatic shotgun designed around a compact 18.5-inch barrel and gas-operated Active Valve System. Its Flat Dark Earth synthetic stock, Picatinny optics rail, LPA front sight, and ghost-ring rear sight provide a practical configuration for field and range use.

The shotgun features a 3-inch chamber, Invector-Plus flush choke system, reversible crossbolt safety, chrome-plated chamber and bore, textured grip surfaces, and a fixed pistol-grip stock. Three choke tubes are included: Full, Modified, and Improved Cylinder.

Key Specifications

• The shotgun uses a 12 gauge chambering.
• The action is semi-automatic and gas operated with an Active Valve System.
• The barrel measures 18.5 inches for a compact overall configuration.
• The chamber accepts shells up to 3 inches.
• The stock is made from synthetic material in Flat Dark Earth.
• The metalwork features a Flat Dark Earth Cerakote finish.
• The receiver includes a Picatinny optics rail.
• The sighting system combines an LPA front sight and ghost-ring rear sight.
• The shotgun uses an Invector-Plus flush choke system.
• The package includes Full, Modified, and Improved Cylinder choke tubes.

With its gas-operated action, compact barrel, adaptable choke system, and practical sighting and mounting options, the SX4 Defender presents a focused configuration for shooters seeking a capable 12-gauge platform with durable finishes and straightforward controls.

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