Mossberg 590R | 12 Gauge | 18.5″ | MFG# 50757

The Mossberg 590R is a 12 Gauge pump-action shotgun built around an 18.5-inch stand-off barrel with an integrated heat shield and OD Green Cerakote finish. It uses a 3″ chamber, an ambidextrous rotary safety selector, and a flat-profile trigger. The 5-position adjustable AR-style stock with MOE pistol grip and a drilled/tapped receiver offer ergonomic fit and optics readiness for range use and professional security applications.

Product Specifications

• The UPC is 015813507578.
• The action type is Pump Action.
• The gauge is 12 Gauge.
• The chamber accepts 3″ shells.
• The barrel length is 18.5 inches.
• The barrel finish is ODG Cerakote.
• The barrel includes a heat shield / stand-off design.
• The choke is listed as cylinder bore.
• The stock is a 5-position adjustable AR Mil-Spec stock with MOE pistol grip.
• The stock material and furniture are black synthetic.
• The receiver is described as aircraft-grade aluminum.
• The trigger is a flat profile trigger.
• The safety is an ambidextrous rotary safety selector.
• The firearm is drilled and tapped for mounting optics.
• The magazine system is a tubular magazine.

Built on the proven 590 platform, this model combines a rugged pump-action mechanism with modern tactical features such as a heat-shielded stand-off barrel, adjustable AR-style stock, and optics-ready receiver. Its feature set targets users who prioritize durability, ergonomic adjustability, and a platform suited to range training and professional security tasks.

Owners commonly praise the ambidextrous rotary safety and durable Cerakote finish for reliability and corrosion resistance. Many users also note the adjustable stock and MOE pistol grip improve fit and handling for a wide range of shooters.