Mossberg 590RM 12 Gauge 18.5-Inch Pump-Action Shotgun

Description

The Mossberg 590RM is a 12-gauge pump-action shotgun configured for security use. Its 18.5-inch barrel includes an integrated heat shield, while the adjustable sights, detachable magazine, adjustable stock, and top Picatinny rail provide a practical setup for range and defensive applications.

Key Specifications

• The 12-gauge chambering suits a broad range of commonly available shotgun ammunition.
• The pump-action operating system provides a manually cycled platform.
• An 18.5-inch barrel balances a compact overall setup with a useful sight radius.
• The 2.75-inch chamber accommodates ammunition of that specified length.
• The detachable magazine allows the shotgun to be loaded through a removable magazine.
• Magpul MBUS 3 adjustable sights provide adjustable iron-sight aiming.
• The five-position adjustable stock allows the length of pull to be adjusted.
• A top Picatinny rail provides an interface for compatible optic accessories.
• The Accu-Choke system with Cylinder Bore choke provides the listed choke configuration.

This model is suited to experienced owners seeking a magazine-fed pump-action shotgun with adjustable fit, practical sighting equipment, and an integrated heat shield. Its combination of a compact barrel, adaptable stock, and accessory rail gives the 590RM a distinct configuration within the Mossberg lineup.