Winchester SXP Marine Extreme Defender | 12 Gauge | 18in

The Winchester SXP Marine Extreme Defender is a 12-gauge pump-action shotgun built for use in harsh or corrosive environments. It features corrosion-resistant chrome-plated components, an 18-inch barrel with a 3-inch chamber, and a composite pistol-grip stock with interchangeable comb pieces for a tailored cheek weld. The receiver includes a Picatinny optics rail and the sighting package consists of a ghost-ring rear and blade front sight. Practical use cases include maritime/boating operations and utility/tactical field tasks where corrosion resistance and compact handling are priorities.

Product Specifications

• The gauge is 12 Gauge.
• The action type is Pump Action.
• The barrel measures 18 inches.
• The chamber accepts 3-inch shells.
• The capacity is 5 + 1.
• The overall length is 38.5 inches.
• The stock material is synthetic.
• The firearm uses a pistol grip synthetic stock with an adjustable cheek riser.
• The sighting system is blade front / ghost ring rear.
• The receiver includes a Picatinny optics rail.
• Included choke is a Breacher (Invector-Plus flush) choke.
• The barrel includes a heat shield.
• The recoil pad uses Inflex Technology.
• The maximum chamber size is 3 inches.
• The UPC is 048702026607.

This SXP variant brings corrosion-resistant finishes and a compact 18-inch length together with practical features—adjustable comb pieces, side-mounted accessory rails, and a breacher choke—to serve operators who need a rugged, easily configured 12-gauge pump. The platform balances compact handling and accessory readiness for maritime and field tasks without compromising standard pump reliability.