The Mossberg 590S is a pump-action 12 Gauge shotgun configured for defensive and security roles where reliable cycling and straightforward ergonomics matter. This optic-ready model features a 20-inch matte blued barrel, a fixed black synthetic stock, and an M-LOK style forend for accessory mounting. It’s built to cycle 1.75-inch, 2.75-inch, and 3-inch shotshells interchangeably, giving users flexibility across training and defensive loads.
Key Specifications
- The shotgun is chambered for 12 Gauge, suitable for a wide range of defensive and training shotshells.
- It uses a pump-action operation with dual extractors and twin action bars for robust, reliable cycling.
- It features a 20-inch matte blued barrel finished in a matte blued coating for a traditional tactical appearance.
- The magazine and chamber combine for a 13+1 capacity as configured with the installed magazine tube.
- The chamber accepts up to 3-inch shells and is designed to cycle 1.75-inch, 2.75-inch, or 3-inch shotshell lengths interchangeably.
- The receiver is optic-ready with a cover plate installed for low-profile red-dot mounting when desired.
- Controls include a top-mounted ambidextrous safety and a bead front sight for straightforward sighting and operation.
- The shotgun ships with a fixed black synthetic stock and an M-LOK style forend with a corn-cob texture for positive handling.
State magazine-capacity restrictions may apply: Hawaii, California, Connecticut, District of Columbia, Illinois, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Washington, and Colorado limit magazine capacity to 10 rounds in certain configurations. Verify local laws before purchase or transfer.
The 590S balances tried-and-true Mossberg pump-action fundamentals with modern convenience features such as an optic-ready receiver and short-shell compatibility. Its straightforward controls and durable synthetic furniture make it well suited for home defense, security applications, and range-oriented training. For users seeking a reliable, serviceable tactical shotgun platform, the 590S offers practical capability without unnecessary complexity.
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