Mossberg 500A Shotgun 12-Gauge

Posted: 09/23/2025

Mossberg 500A Shotgun 12-Gauge

The Mossberg 500A is a 12-gauge, pump-action shotgun renowned for reliability, featuring a 3-inch chamber (accepts 2-3/4″ and 3″ shells), aluminum receiver, and dual action bars. Common configurations include a 5+1 capacity, 28-inch vent-rib barrel, and a 7.5 lb weight, making it a versatile choice for hunting, sport, and security.

Specifications:

  • Gauge: 12 Gauge
  • Action: Pump-Action
  • Chamber: 3 inches (handles 2-3/4″ or 3″ shells)
  • Capacity: 5+1 (based on 2-3/4″ shells)
  • Barrel Type: 28″ Vent Rib (Ported options available)
  • Overall Length: ~47.5″ to 48.25″
  • Weight: ~7.5 lbs
  • Safety: Top-mounted ambidextrous tang safety
  • Choke: Accu-Set (Full, Improved Cylinder, Modified)
  • Finish: Blued or Matte Blued
  • Stock: Synthetic or Walnut