The Winchester SXP Shadow Marine Defender in 20 gauge (brand part no. 512328695) is a pump-action shotgun built around an 18-inch barrel with a 3-inch chamber, giving home-defense shooters a light-recoiling 20 gauge with corrosion-resistant Marine coating. Winchester fits the Shadow Marine Defender with a crossbolt safety for quick, reliable operation. Among pump-action shotguns, the Shadow Marine Defender favors shooters who want a lighter-recoiling 20 gauge built to resist corrosion in humid or coastal environments.

Key Specifications

• Chambered in 20 gauge with a 3-inch chamber.
• Operates as a pump-action shotgun.
• Features an 18-inch barrel.
• Runs a crossbolt safety.
• Feeds from a tubular magazine with a 5+1 capacity.
• Built with a Marine corrosion-resistant coating.
• Overall length is 42 inches.
• Ships at approximately 8.25 pounds.
• Built on Winchester’s lightweight aluminum alloy receiver.

Frequently Asked Questions

What does the Marine coating protect against? It resists corrosion in humid, coastal, or marine environments better than a standard finish.

Why 20 gauge for defense? Lighter recoil for faster follow-up shots while still delivering effective close-range stopping power.

Buy the Winchester SXP Shadow Marine Defender Shotgun

A lighter-recoiling 20 gauge built to resist corrosion is exactly what the Shadow Marine Defender delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.