The TriStar Cobra III Marine is a 12-gauge, 3″ chamber pump-action shotgun designed for a wide range of loads from light target loads to heavy waterfowl loads. The Marine model features an 18.5-inch chrome-lined barrel and a spring-loaded forearm that assists rapid cycling when engaged. It includes a MobilChoke removable choke system with choke box and wrench, and a synthetic stock with a rubber recoil pad and swivel studs.
Key Specifications
- The gauge is 12 Gauge.
- The barrel measures 18.5 inches and is chrome lined.
- The chamber accepts 3 inch shells.
- The capacity is 5 + 1 rounds.
- The action is Pump Action with an assisted, spring-loaded forearm on the Marine model.
- The choke system is a MobilChoke removable choke and the gun includes a choke box and wrench.
- The stock is black synthetic with a rubber recoil pad.
- The finish is matte silver with black synthetic furniture.
- The average weight is 6.2 lbs.
- Additional features include a Picatinny rail under the forearm for accessory mounting.
Built for versatility and corrosion resistance, the Cobra III Marine pairs an assisted pump design and chrome-lined bore with practical features like a synthetic stock and Picatinny rail. Its combination of a short 18.5″ barrel, 3″ chamber, and MobilChoke system makes it suitable for coastal and waterfowl use as well as general-purpose defensive and utility roles where reliable, versatile performance is required.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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