Mossberg 500A 12 Gauge Pump-Action Shotgun, 18.5 inch Cylinder Bore, 4+1, Pistol-Grip-Only, North Haven Marked
This Mossberg 500A is a compact 12 gauge pump-action with a factory 18.5 inch cylinder bore barrel and a 4+1 capacity. It features a black anodized aluminum alloy receiver marked North Haven, Connecticut, a ribbed hardwood forend, and a black synthetic pistol-grip-only configuration. It is chambered for both 2 3/4 inch and 3 inch shells and includes a brass front bead sight. A black nylon sling is installed with a rear quick-detach swivel; the front is threaded through a fixed loop at the magazine cap (no front quick-detach swivel).
Condition
Overall Condition: Poor condition.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: The manual safety is missing and the shotgun is currently inoperable. The safety must be replaced by a qualified gunsmith before any firing is attempted.
What’s Included
- Black nylon web sling with rear quick-detach swivel; front attached to fixed loop at magazine cap (installed)
The 18.5 inch barrel with a true cylinder bore provides a straightforward, no-choke profile suited to close-range work. The brass front bead offers a simple, durable sighting reference, with no rear sight as configured.
The receiver is aluminum alloy with a black anodized finish and a right-side ejection port. Twin action bars support smooth cycling and reinforce the proven Model 500A pump-action design.
This example is chambered for both 2 3/4 inch and 3 inch 12 gauge shells, offering flexibility in ammunition selection. Capacity is 4+1 rounds.
Furniture includes a ribbed hardwood forend and a black synthetic pistol grip in a pistol-grip-only configuration. The receiver is marked North Haven, Connecticut, and the shotgun was made in the United States. An installed black nylon sling with a rear quick-detach swivel and front attachment to a fixed loop at the magazine cap is included.