Home / Guns / Mossberg
▼ 31% off
Mossberg 590RM Mag-Fed Stand-Off Pump 12 Gauge Shotgun 18.5" Black Barrel Black Pistol Grip

Mossberg 590RM Stand-Off 12 Gauge 18.5" 10-Round Pump Shotgun

$752.26 31% off MSRP 82 in stock at 94 retailers
10-Round Detachable Magazine
18.5 Barrel with Integrated Heat Shield and Stand-Off"
5-Position Adjustable Stock w/MOE Pistol Grip, Interchangeable Recoil Pad, 2 QD Ports
Ambidextrous AR-Style Rotary Safety Selector
Enlarged, Beveled Loading Port with Exposed Follower
Flat Profile Trigger with smooth, crisp break
Top Picatinny Rail for AR-Style Optics

Specifications

Caliber
Brand
Model
Series
Stand-Off
MPN
50218
UPC
015813502184
MSRP
$1,085
Action
Pump Action
Barrel Length
18.5"
Capacity
10 Rounds

Description

The Mossberg 590RM Stand-Off is a 12 gauge pump-action shotgun with an 18.5-inch barrel and a matte black finish. It is built for home defense and general-purpose use, with a compact overall length of 37 inches and a weight of 7.09 pounds.

The shotgun chambers 2.75-inch 12 gauge shells and holds 10 rounds in its magazine. It has an ambidextrous safety selector, an enlarged, beveled loading port, and an integrated barrel and heat shield. The stock adjusts across five positions, and the receiver includes a Picatinny mount that accepts optics.

The Stand-Off is optics ready, so a red dot or similar sight can be mounted on the Picatinny rail without additional gunsmithing.

  • Action: Pump Action
  • Gauge/Chamber: 12 Gauge 2.75"
  • Barrel Length: 18.5"
  • Capacity: 10 Rounds
  • Overall Length: 37"
  • Weight: 7.09 lbs
  • Finish: Matte Black
  • Mount Type: Picatinny

Similar Products

Stay Connected

Join our newsletter for the latest updates and exclusive deals.

ARMSAGORA

Compare prices on firearms, ammunition, and accessories from hundreds of trusted retailers. Find the best deals, track prices, and build your own loadouts.

© 2026 ARMSAGORA. All rights reserved.
Not an FFL licensed dealer. ARMSAGORA is a product comparison tool.