Mossberg 590 12 Gauge Pump-Action Shotgun, 20" Cylinder Bore, 8+1 Capacity, Magpul SGA Stock
This Mossberg 590 is a U.S.-made, late-1980s pump-action shotgun with a 20" cylinder bore barrel and an 8+1 capacity. It is set up with a Magpul SGA polymer buttstock, a Magpul polymer slotted forend, and a hook-and-loop (Velcro-style) receiver side panel. Receiver markings indicate "Mossberg / MADE IN U.S.A. / NORTH HAVEN, CONN." with "590 12 GA," and the barrel is marked for 2 3/4" and 3" shells.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Mechanical Condition: The firearm is fully functional and operates correctly.
Cosmetic Condition: This firearm shows scratches and blemishes from prior use and handling.
Specific Condition Notes: This firearm is in solid functional shape. There are scratches and blemishes present. The bore is clean and shiny.
What's Included
- Firearm
- Magpul SGA polymer buttstock
- Magpul polymer slotted forend
- Hook-and-loop (Velcro-style) receiver side panel
Chambered for 2 3/4" and 3" shells, this 590 is built around a 20" cylinder bore barrel. The barrel is marked "CHAMBERED FOR 2 3/4 AND 3 IN. SHELLS" and "12 GA. 20 IN. CYLINDER BORE," keeping the configuration clear and straightforward.
This example uses a tubular magazine under the barrel that extends near the muzzle and is rated at 8+1 capacity. The 590 series is commonly described as oriented toward law-enforcement/military-style service use, using a magazine-tube/front cap arrangement intended to support easier maintenance and clean-out than a typical Model 500 closed-end arrangement.
Handling features include a tang safety and a bead sight with a front bead. The gun is fitted with polymer furniture, including a Magpul slotted forend and a Magpul SGA buttstock, along with a receiver-mounted hook-and-loop side panel.
Markings on the receiver show it as a North Haven, Connecticut-produced Mossberg, with "MADE IN U.S.A." and "590 12 GA" present. For buyers looking for a 590 with clear factory markings and practical updates, this one combines a classic 590 layout with modern polymer furniture.