Mossberg 590RM 12 Gauge 18.5 inches 10 Round Magazine Magpul

The Mossberg 590RM Shotgun brings the proven 590 series reliability into a modern tactical configuration, offering a 12 ga pump-action with an 18.5" phosphate barrel and integrated heat shield that stands up to heavy-duty security and duty use; its AR-style ambidextrous rotary safety selector and Magpul MBUS 3 adjustable sights make transitions and target acquisition intuitive for right- or left-handed shooters, while the 10-round detachable magazine and Accu-Choke system (Cylinder Bore installed) provide capacity and pattern options suited to home defense, patrol work, and range drills. The rifle-length top Picatinny rail accepts AR-style optics or red dots, the enlarged beveled loading port with exposed follower speeds reloads under stress, and the flat profile trigger delivers a smooth, crisp break for consistent follow-up shots. Mobility and fit are addressed by the 5-position adjustable stock with MOE pistol grip and interchangeable recoil pad, 12"×15.25" length of pull, and compact forend for positive manipulation; at roughly 8 lbs overall, the 590RM balances controllability with durability, making it a practical choice for shooters seeking a hardened Mossberg 590 platform updated with Magpul ergonomics and modern accessory compatibility.