Mossberg 500A 12 Gauge Pump-Action Shotgun, 18.5 In, Defensive Setup, ATI Adjustable Stock, Heat Shield, Rail, 5-Round
This Mossberg 500A is a 12 gauge, defensive-configured pump-action with an 18.5-inch barrel and a matte black finish. It is outfitted with an Advanced Technology, Inc. (ATI) adjustable telescoping buttstock with a pistol grip and rubber recoil pad, a perforated metal barrel heat shield, a clamp-on under-barrel accessory bracket with a short rail, and a 5-round shell carrier ring assembly. The receiver is marked "Mossberg - Made in USA - North Haven, Conn. - 500A 12 GA."
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Specific Condition Notes: Light scuffs, scratches, and wear are visible on exterior surfaces.
What’s Included
- Mossberg 500A 12 gauge pump-action shotgun with 18.5-inch barrel
- ATI adjustable telescoping buttstock with pistol grip and rubber recoil pad
- Perforated metal barrel heat shield
- Clamp-on under-barrel accessory bracket with short rail
- 5-round shell carrier ring assembly
The 18.5-inch steel barrel and 5-round capacity set this 500A up for defensive use, as noted by the factory-style receiver marking and configuration. The shotgun uses Mossberg’s pump-action system with a top-tang manual safety for straightforward operation.
Customization centers on an ATI adjustable, telescoping buttstock with an integrated pistol grip and rubber recoil pad. The listed length of pull is 13.0 inches, providing a compact, maneuverable fit.
Accessory capability comes from a clamp-on under-barrel bracket with a short rail, and a 5-round shell carrier ring assembly adds on-board ammunition management. A perforated metal barrel heat shield is installed over the barrel.
Construction details include a steel barrel and an aluminum receiver, both finished in matte black. The shotgun uses a bead sight with a brass bead front and is made in the USA, with the receiver marked "Mossberg - Made in USA - North Haven, Conn. - 500A 12 GA."