The Mossberg 590M 20-round magazine is a factory-designed detachable magazine for the Mossberg 590M Mag-Fed pump-action shotgun. Its patented double-stack configuration provides higher capacity in a shorter overall length than comparable single-stack magazines. The design pairs a proprietary self-lubricating polymer body with hardened steel feed components for reliable feeding and straightforward maintenance.
Key Specifications
- Holds 20 rounds in a double-stack configuration for increased ammunition capacity.
- Designed for 12 Gauge shotshells and intended for use with 2.75″ length shotshells only.
- Made to fit the 590M Mossberg Mag-Fed pump-action shotgun.
- Features a self-lubricating polymer magazine body for reduced friction and smoother feeding.
- Includes hardened steel feed lips and over-molded steel shell ramps for durable feeding surfaces.
- Steel components carry a black oxide/blued finish for corrosion resistance on metal parts.
- Equipped with a removable floor plate to simplify cleaning and maintenance.
- Exterior has an easy-grip molded design to aid manipulation during reloads.
- Overall package dimensions measure approximately 2.75 x 4.45 x 13.10 inches as provided by the manufacturer.
- Package weight is listed as 1.95 lb for shipping and handling considerations.
Purpose-built for users who require higher magazine capacity and straightforward serviceability, the 590M magazine balances capacity, compact length, and durable construction. The combination of polymer and hardened steel components with a removable floor plate makes routine maintenance simple while maintaining reliable feeding during normal use.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.
