Mossberg 500A 12 GA Shotgun

Posted: 04/29/2026

Mossberg 500A 12 GA Shotgun

Mossberg 500A 12 GA Shotgun

The Mossberg 500A (Field model) is a 12-gauge, 3-inch chambered pump-action shotgun, typically featuring a 28-inch vent rib barrel, 5+1 capacity, and a ~13.875″ length of pull. It is known for its dual extractors, twin action bars, and ambidextrous top-mounted safety, with a total length of 47.5″ and weight around 7.5 lbs.

Specifications:

  • Action: Pump-Action
  • Gauge: 12
  • Barrel: 28″ Vent Rib (usually with Accu-Set chokes)
  • Chamber: 3″ (handles 2-3/4″ and 3″ shells)
  • Capacity: 5+1 (5 in magazine, 1 in chamber)
  • Overall Length: 47.5″
  • Weight: ~7.5 lbs
  • Stock: Wood
  • Sights: Twin Bead
  • Safety: Top-mounted ambidextrous safety
  • Finish: Blued Barrel/Receiver