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IA Iron River Armory

Winchester SXP Marine Defender — 20 Gauge, 18″ Barrel

SKULIP|WI512328695 Conditionnew CategoryPump Action Shotguns
$505.47
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About this product

The Winchester SXP Marine Defender is a pump-action 20 Gauge shotgun built for corrosion resistance and reliable function in demanding environments. It pairs an 18″ matte chrome barrel and a hard-chrome plated chamber and bore with a matte black aluminum alloy receiver. The black synthetic stock with textured grip and Inflex recoil pad provides durable handling and control for field and utility use.

Key Specifications

  • The gauge is 20 Gauge.
  • The action is pump action.
  • The barrel measures 18 inches.
  • The chamber accepts shells up to 3 inches.
  • The stock is black synthetic with a pistol grip.
  • The receiver is matte black aluminum alloy and is drilled and tapped for a scope base.
  • The barrel features a matte hard chrome finish with a chrome-plated chamber and bore.
  • Includes a removable TruGlo front sight.
  • The recoil system uses an Inflex recoil pad (small).

Built for rugged, practical use, the SXP Marine Defender combines corrosion-resistant finishes and a weather-ready synthetic stock with straightforward pump operation. Its configuration suits close-range field work, utility applications, and general-purpose use where durability and dependable function are priorities. The drilled-and-tapped receiver and removable front sight provide simple options for sighting and accessory fitment.

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Specs at a glance

Winchester SXP Marine Defen… SPECS AT A GLANCE 18 inches SIZE
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$505.47