Mossberg 590 12 Gauge Pump-Action, 20 Inch Cylinder Bore Barrel, 3 Inch Chamber, 6+1 Capacity, Matte Black
The Mossberg 590 shown here is a 12-gauge pump-action with a 20-inch fixed Cylinder Bore barrel and a 3 inch chamber, set up for straightforward reliability and control. It features an aluminum-alloy receiver drilled and tapped with plug screws installed, a Magpul polymer forend, and an adjustable telescoping polymer stock with pistol grip and a stock-mounted six-shell carrier. Dual action bars, dual extractors, and an anti-jam elevator round out a proven operating system.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: This shotgun shows minimal markings from previous handling and use. The bore is bright and clean. Refer to the photos for additional detail.
What’s Included
- Stock-mounted six-shell carrier (installed)
The 20-inch steel barrel is a fixed Cylinder Bore with a plain (no rib) profile for simple, consistent performance. It is chambered for both 2 3/4 and 3 inch 12-gauge shells, offering flexibility in load selection. A green fiber-optic front bead provides a bright, easily acquired aiming reference.
The 590’s pump-action uses dual action bars, dual extractors, and an anti-jam elevator for positive cycling and reliable extraction. The tubular magazine includes a removable end cap for clean-out, and capacity is noted at 6+1. The top-tang safety is easy to access and intuitive for a wide range of shooters.
The receiver is aluminum-alloy with a matte black finish and comes drilled and tapped from the factory with plug screws installed. This setup keeps options open while maintaining a clean profile out of the box.
Furniture includes an adjustable, telescoping polymer stock in matte black with a pistol grip featuring a molded "M" logo. Length of pull is 12.75 inches for a compact, maneuverable fit. Up front, a Magpul polymer forend offers a secure, durable grasp.
Made in the United States, this Mossberg 590 presents a clean, functional configuration focused on durability and straightforward operation, with the added utility of a stock-mounted six-shell carrier.