The Mossberg 590 FLEX Tactical is a modular pump-action 12 gauge shotgun built around the long-established 590 platform. Its primary role is tactical and defensive use while remaining suitable for range training and duty applications thanks to a robust, service-oriented design. The FLEX system allows quick, tool-less adjustment of the stock, forend, and recoil pad to match fit and mission requirements.
Key Specifications
- The shotgun is chambered in 12 Gauge, making it compatible with common 12ga ammunition suitable for range and defensive use.
- The barrel measures 20 inches and is a cylinder-bore configuration for reliable patterning with a wide range of loads.
- The action is a Pump Action design, built with twin action bars and dual extractors for positive operation.
- The stock features a 6-position adjustable FLEX system with an integrated pistol grip to tailor length of pull and ergonomics.
- The metal is finished in matte blued steel with a black synthetic stock and forend for durability and low-reflectivity.
- The shotgun accepts a 3-inch chamber to accommodate 3″ shells where legal and appropriate.
- The forend includes a tri-rail tactical design for mounting lights or accessories without permanent modification.
- The unloaded weight is approximately 7 lbs for a balance of handling and carryability in field or duty contexts.
- The overall length is roughly 41 inches at maximum length of pull using the adjustable stock settings.
- The sighting system is a simple fixed bead front sight for quick target acquisition in close-range applications.
The FLEX 590 Tactical emphasizes modularity and durability, offering tool-less changes to fit individual shooters and mission needs. Its combination of a service-proven pump action, adjustable stock, and accessory-ready forend makes it a practical choice for users who require a rugged, adaptable shotgun platform. The design focuses on reliability, straightforward maintenance, and ergonomic adaptability for professional and civilian use alike.
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