Winchester SXP Marine Extreme Defender 12 GA 18″ 3″

The Winchester SXP Marine Extreme Defender is a compact, pump-action 12 gauge shotgun engineered for corrosion resistance and rugged service. It pairs an 18" barrel with a 3" chamber and a synthetic pistol-grip stock for compact handling and control in confined or demanding environments. The design includes a Picatinny optics rail, side-mounted accessory rails and a heat shield to support mission-specific accessories.

Key Specifications

• Gauge: 12 Gauge.
• Action: Pump Action.
• Barrel length: 18 inches.
• Chamber: 3 inches.
• Stock: Synthetic pistol-grip stock.
• Choke: Invector-Plus breacher (flush) choke included.
• Sights: Blade front and ghost-ring rear.
• Rail: Picatinny optics rail with side-mounted accessory rails.
• Recoil pad: Inflex Technology recoil pad.
• Corrosion protection: Matte hard chrome-plated barrel and components.

The SXP Marine Extreme Defender is built for users who need a compact, corrosion-resistant pump shotgun with practical accessory options and user-adjustable ergonomics. Its combination of a short 18" barrel, pistol-grip stock and accessory-ready receiver make it suitable for close-quarters utility and demanding outdoor conditions while maintaining the core reliability of the Super X Pump platform.