Mossberg 590RM Tactical Shotgun 12ga 18.5in

$882.34 17 in stock

Mossberg's innovative 590RM pump-action shotgun features a 10-round detachable magazine, 18.5-inch barrel with integrated heat shield, Magpul MBUS 3 sights, adjustable stock, and top Picatinny rail for optics mounting.

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Mossberg 590RM: Modern Tactical Pump-Action Shotgun

The Mossberg 590RM represents a significant evolution in pump-action shotgun design, combining proven reliability with modern ergonomics and tactical features.

Key Features

Magazine System

  • 10-round detachable magazine with double-stack design
  • Enlarged, beveled loading port with exposed follower for quick reloading
  • Interchangeable magazine compatibility for extended capacity options

Barrel & Sighting

  • 18.5-inch barrel with integrated heat shield for stand-off capability
  • Magpul MBUS 3 adjustable backup sights
  • Top Picatinny rail for mounting optics and accessories

Controls & Ergonomics

  • Ambidextrous AR-style rotary safety selector
  • Flat-profile trigger with smooth, crisp break
  • Magpul MOE pistol grip for secure handling
  • Compact forend design for improved control

Stock & Adjustability

  • 5-position adjustable stock accommodates shooters of different builds
  • Length of pull ranges from 12 to 15.25 inches
  • Interchangeable recoil pad for customization
  • Two quick-detach ports for sling attachment

Specifications

  • Gauge: 12 Gauge
  • Chamber: 2.75 inches
  • Action: Pump-Action
  • Capacity: 10 rounds
  • Barrel Length: 18.5 inches
  • Overall Length: 36.9 inches
  • Weight: Approximately 8 pounds
  • Choke: Accu-Choke System with Cylinder Bore installed
  • Finish: Phosphate

Purpose & Application

The 590RM is purpose-built for security, tactical training, and demanding field use. Its compact profile, high capacity, and modern controls make it equally suitable for home defense or professional applications. The adjustable stock ensures proper fit for various shooters, while the detachable magazine system allows rapid reloads without fumbling with tube-fed systems.

Features

  • chambered in 12-gauge
  • 18.5-inch barrel with phosphate finish
  • integrated heat shield for enhanced barrel protection
  • pump-action design with rotary safety selector
  • 2.75-inch chamber for compatibility with standard shells
  • 10+1 capacity with detachable double-stack magazine
  • adjustable stock with moe pistol grip and interchangeable recoil pad
  • magpul mbus 3 adjustable sights for precision targeting
  • flat-profile trigger for a smooth and crisp break
  • enlarged, beveled loading port with exposed follower
  • top picatinny rail for ar-style optics
  • accu-choke system with cylinder bore choke installed
  • length of pull: adjustable from 12 to 15.25 inches
  • overall length: 36.9 inches
  • weighs 8 lbs for robust handling
  • flat profile trigger
  • m-lok adapter
  • single piece heat shield

Attributes

Accessory: Unknown
Action: Pump Action
Barrel Description: Heat Shield
Barrel Length: 18.5"
Caliber: 12 Gauge
Capacity: 10+1
Chamber: 2.75"
Choke Configuration: Accu-Choke
Choke Configuration: Cylinder Bore
Chokes Included: Cylinder Bore
Color: Black
Features: Not Specified
Finish: Blued
Finish: Matte Blue
Finish: Parkerized
Gauge: 12 Gauge
Grips: Black Synthetic
Hand: Right Hand
Magazine Type: 10-Round Detachable Box
Model: 590RM
Model Series: 590
Model Series: 590RM
Optic Included: No
Overall Length: 36.9 in
Overall Length: 39.5 in
Receiver Description: Aluminum
Safety: Ambidextrous Thumb Safety
Sights: Adjustable
Sights: Magpul MBUS 3
Sights: Magpul MBUS 3 Adjustable
Sights: None
Stock: 5-Position Adjustable
Stock Description: Adjustable Length of Pull
Stock Description: Black Synthetic
Stock Finish: Black
Weight: 8 lbs