The Winchester SX4 Defender is a purpose-built 12-gauge semi-automatic shotgun designed for versatile field and utility use. It pairs a compact 18.5-inch barrel with a self-adjusting Active Valve gas system to manage a broad range of loads. The shotgun comes finished in Flat Dark Earth Cerakote on the receiver and barrel with a synthetic FDE stock and fixed pistol grip for consistent handling.
Key Specifications
- The action is a Semi-Auto design for rapid follow-up shots.
- The gauge is 12 Gauge.
- The barrel measures 18.5 inches for compact handling.
- The chamber accepts a 3-inch shell.
- Finish is a Flat Dark Earth Cerakote on the barrel and receiver.
- The stock is a Flat Dark Earth synthetic with a fixed pistol grip.
- Includes the Invector-Plus choke system with Full, Improved Cylinder and Modified tubes.
- Sights are LPA front and ghost-ring rear for fast, instinctive acquisition.
- Powered by the Active Valve gas system for reliable cycling across loads.
- The receiver features a Picatinny optics rail on an FDE aluminum alloy.
Purposeful, rugged, and ready for a range of practical shooting roles, the SX4 Defender combines proven autoloading reliability with user-focused ergonomics and sighting options. Its compact profile, interchangeable choke set and optics-ready receiver make it a practical choice for shooters who want a durable, adaptable 12-gauge platform in a Flat Dark Earth finish.
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