Mossberg 500A 12 Gauge Pump-Action Shotgun, 18.5 in Barrel, Fixed Cylinder Bore, Heat Shield, 4+1 Capacity, 2 3/4 or 3 in
This Mossberg 500A is a 12 gauge pump-action configured with an 18.5-inch plain steel barrel and a fixed cylinder bore. It accepts 2 3/4- or 3-inch shells and features a heat shield, brass bead front sight, and a right-side ejection port. The aluminum alloy receiver keeps weight down, while the black synthetic furniture includes a fixed buttstock with an integral pistol grip and a ribbed forend. Note: the trigger does not actuate; overall function could not be determined and it is sold as is.
Condition
Overall Condition: Poor condition.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: This firearm is in solid shape. There are scratches and blemishes present. The bolt face is blemished. Rust and pitting are present on smaller controls. The trigger does not actuate, and the overall function could not be determined.
Sold as is.
What’s Included
- Mossberg 500A 12 Gauge pump-action shotgun
The 18.5-inch plain steel barrel is paired with a fixed cylinder bore for dependable patterns with a wide range of loads. A factory-style heat shield runs over the barrel for added protection during extended shooting. The brass bead front sight offers a straightforward sight picture.
The receiver is aluminum alloy with a black finish and a right-side ejection port. Controls include Mossberg’s ambidextrous top-tang safety for intuitive operation. The action is pump-driven and the stated capacity is 4+1 with 2 3/4- or 3-inch shells.
Furniture consists of a black synthetic fixed buttstock with an integral pistol grip and a Mossberg medallion, plus a ribbed synthetic forend. The stock includes a sling attachment loop and a skeletonized design. Length of pull is 14.0 inches.
This configuration accepts 2 3/4- and 3-inch shells and uses a fixed cylinder bore for versatility at short to moderate distances. The finish is blued/black throughout for a classic, utilitarian look.
Made in North Haven, Connecticut, this 500A retains the platform’s hallmark features, including the bead sight and top-tang safety. Functional note: the trigger does not actuate, and overall function could not be determined; it is sold as is.




