Mossberg 590 SPX 12 Gauge 18.5″ 6+1 Pump Shotgun

The Mossberg 590 SPX is a pump-action 12 gauge built for defensive and duty applications, featuring a short 18.5-inch cylinder-bore barrel and a six-round magazine plus one in the chamber. This SPX model ships with a FLEX 6-position adjustable synthetic stock and a pistol grip for tailored length of pull and control. It includes ghost-ring rear sights paired with a winged fiber-optic front sight for fast target acquisition.

Key Specifications

• The gauge is 12 Gauge.
• The capacity is 6+1.
• The chamber accepts 3-inch shells.
• The barrel measures 18.5 inches and is a cylinder bore.
• The choke type is Cylinder Bore.
• The sights are ghost ring rear with a winged fiber-optic front.
• The stock is a FLEX 6-position adjustable synthetic with pistol grip.
• The action is pump action.
• The finish is Matte Blued.
• The length of pull adjusts between 10.75 inches and 14.25 inches.

Purpose-built for reliable duty and home-defense use, the 590 SPX combines straightforward pump-action operation with a compact barrel, rugged steel construction, and an adjustable ergonomic stock for usable fit across shooters. Its sight package and cylinder-bore barrel keep handling and follow-up practical for close-range defensive scenarios, while the FLEX stock and pistol grip provide tactile control without unnecessary complexity.