The Winchester SXP Marine Defender shotgun in 12 gauge with an 18-inch barrel (brand part no. 512268395) is built for corrosion resistance in harsh, wet environments. Winchester plates this Marine Defender’s barrel, magazine tube, chamber, and bore in matte chrome over an alloy receiver, pairing it with a synthetic stock featuring textured gripping surfaces and a tactical ribbed forearm. A Cylinder choke, crossbolt safety, and TruGlo fiber optic front sight complete a purpose-built marine defense gun. Among pump-action shotguns, the SXP Marine Defender favors boaters and coastal shooters who need serious corrosion resistance.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Features an 18-inch barrel.
• Feeds from a tubular magazine with a 5-round capacity.
• Fitted with a Cylinder choke.
• Runs a crossbolt safety.
• Equipped with a brass bead front sight.
• Barrel, magazine tube, chamber, and bore finished in matte chrome.
• Receiver is alloy, built with a tactical ribbed forearm.
• Overall length is approximately 41.7 inches.
• Ships at approximately 8.15 pounds.

Frequently Asked Questions

What makes this a marine shotgun? Matte chrome plating on the barrel, magazine tube, chamber, and bore for corrosion resistance in wet environments.

What choke does it use? A Cylinder choke, suited to close-range work.

Buy the Winchester SXP Marine Defender Shotgun

Serious corrosion resistance in a compact 12 gauge pump is exactly what the SXP Marine Defender delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.