Mossberg 500A 12 Gauge Pump-Action Shotgun, 28-Inch Vent-Rib Barrel, Fixed Modified Choke, 3-Inch Chamber, Gunsmith Special
This Mossberg 500A is a 12 gauge pump-action shotgun configured with a 28-inch steel barrel, a ventilated rib, and a fixed modified choke. It is chambered for both 2 3/4 and 3-inch shells and features an aluminum-alloy receiver with a tang-mounted safety. The synthetic stock includes a ventilated recoil pad and a textured pistol-grip area. Offered as a gunsmith special, this example is sold as-is and has significant missing parts and exterior wear.
Condition
Overall Condition: Poor condition.
Bore Condition: Poor - Noticeable dirt, stains, significant corrosion or damage.
Specific Condition Notes: This firearm is sold as a gunsmith special and is offered as-is. The trigger assembly and bolt are not present. Note: The Mossberg 500A does not use a separate feed ramp; feeding is handled by the shell lifter/elevator and shell stops. Heavy scratching and pitting are visible throughout the firearm. The front bead is not present at the muzzle.
What’s Included
- Mossberg 500A 12 gauge pump-action shotgun (as described)
The shotgun uses a 28-inch steel barrel with a ventilated rib and a fixed modified choke, set up for versatile 12 gauge use. It accepts 2 3/4 and 3-inch shells and feeds from a 4+1 capacity with a standard-length magazine tube capped by a threaded end cap.
The receiver is aluminum alloy and pairs with steel-on-steel bolt-to-barrel lockup for durability. A tang-mounted safety provides intuitive control, and the action features right-side ejection. Two empty threaded holes are present on the left side of the receiver.
Furniture includes a light-to-medium gray synthetic stock with a textured pistol-grip area and a ventilated recoil pad. The ribbed synthetic fore-end, also gray, provides a secure grasp during cycling. Length of pull measures 13.5 inches.
Sighting is via the ventilated rib, with a bead seat at the muzzle; the front bead is not installed. Serial number marking is on the receiver. This listing is a gunsmith special and is sold as-is.