SHOTGUN: MOSSBERG MODEL 500A SHOTGUN, SERIAL NUMBER K351114, CAMOUFLAGE, CASE NOT INCLUDED, PUMP, 12 GAUGE, 28 Notes: Mossberg 500A 12GA Shotgun Description: Type: Pump-action shotgun chambered in 12 gauge. Size: Full-size shotgun configuration. Capacity: Varies by specific configuration. Features: Pump-action operation, tang-mounted safety, and interchangeable barrel system. Weight: Varies by configuration. Design: Durable pump-action design based on the Mossberg 500 platform. Summary: The Mossberg 500A is a 12-gauge pump-action shotgun from the Mossberg 500 series, featuring a traditional pump-action operating system and configuration suitable for various sporting and field applications.