The Mossberg 590S is a full-size 12-gauge pump-action shotgun featuring a 20″ barrel and an M-LOK-compatible forend. It is chambered for 3″ and cycles 1.75″, 2.75″, and 3″ shells. Standard features include ghost-ring sights, a cylinder-bore choke, dual extractors, twin action bars, and a top-mounted ambidextrous safety.
Key Specifications
- The gauge is 12 gauge.
- The action is pump-action.
- The chamber accepts 3″ shells and cycles 1.75″, 2.75″, and 3″ lengths.
- The advertised capacity is listed as 13+1 with 1.75″ mini shells (other configurations are noted in source material).
- The barrel length measures 20 inches.
- The forend is M-LOK compatible for modular accessory mounting.
- The installed sighting is a ghost-ring rear with a matching front configuration.
- The choke condition is a cylinder bore (internal choke tubes noted).
- The stock is black synthetic with a fixed pistol-grip style.
- The listed weight is approximately 7.25 lbs and overall length is 41.5 inches.
Engineered for adaptability and straightforward operation, the 590S combines M-LOK modularity, short-shell compatibility, and ghost-ring sighting into a practical platform for duty, range work, or general-purpose defensive applications. Its simple controls and proven pump-action design make it a functional choice for shooters who prioritize durable, no-nonsense equipment.
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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