Mossberg 590R 12 Gauge 18.5-Inch Pump Shotgun

The Mossberg 590R is a 12 gauge pump-action shotgun configured with an 18.5-inch barrel and integrated heat shield. It combines a rotary safety selector, adjustable stock, Magpul MBUS 3 sights, and a top Picatinny rail in a practical platform for security and general sporting use.

Key Specifications

• The shotgun uses a 12 gauge chambering.
• The action is pump-action for manual cycling.
• The chamber accommodates shells up to 3 inches.
• The barrel measures 18.5 inches and incorporates an integrated heat shield.
• The barrel uses an Accu-Choke cylinder bore configuration.
• The sight system consists of Magpul MBUS 3 adjustable sights.
• The stock provides five-position adjustment with an interchangeable recoil pad.
• The shotgun includes a top Picatinny rail for compatible accessories.
• The safety is an ambidextrous AR-style rotary selector.
• The listed weight is 7.1.

With its adjustable stock, compact 18.5-inch barrel, integrated heat shield, and configurable sight and rail system, the 590R offers a straightforward setup for shooters who value adaptable controls and familiar pump-action operation.

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