Mossberg 590 12 Gauge Pump-Action, 20.5 in Barrel, 6+1 Capacity, Side-Folding Stock, Heat Shield, Made in USA
This Mossberg 590 is a U.S.-made 12 gauge pump-action shotgun featuring a 20.5 in barrel, a steel perforated heat shield, and a factory side-folding polymer stock. The receiver is drilled and tapped with three filler screws and is marked 'Mossberg – Made in U.S.A. – North Haven, CONN – 590 12 GA.' A front bayonet-lug block is positioned on the barrel/magazine-tube clamp (bayonet adapter) just behind the knurled magazine cap. The bore is bright and clean, and the non-glare matte finish supports practical use.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Specific Condition Notes: Exterior surfaces show handling and use marks. See photos for a close look at the finish and markings.
What’s Included
- Owner's Manual
The 590 platform here is set up with a plain 20.5 in barrel capped by a brass bead front sight, giving a simple, durable sight picture. A steel perforated heat shield runs over the barrel for additional protection during extended use. The receiver is aluminum alloy with a matte, non-glare finish and is factory drilled and tapped on top with three filler screws installed.
This example uses a side-folding, skeletonized polymer stock with a hinge release button and a rubber buttpad. The pistol grip provides a firm hold, and the ribbed polymer forend offers secure purchase for cycling. Length of pull measures 15.0 in.
Capacity is 6+1 in a tubular magazine. A front bayonet-lug block is mounted to the barrel/magazine-tube clamp just behind the magazine cap. Controls include Mossberg's top-tang safety for intuitive operation.
Receiver markings read 'Mossberg – Made in U.S.A. – North Haven, CONN – 590 12 GA.' The shotgun retains a consistent matte dark, non-reflective finish across metal and polymer components, aligning with the model's duty-focused design.




