O.F. Mossberg & Sons · Shotgun · In Production · 1987
| Weight (empty) | 3290 g (116.1 oz) |
| Overall Length | 1041 mm (40.98") |
| Barrel Length | 508 mm (20.00") |
| Magazine Capacity | 8 rounds |
| Action Type | Pump Action |
| Firing Mechanism | Hammer Fired |
| Muzzle Velocity | 457 m/s (1499 fps) |
| Effective Range | 40 m (44 yd) |
| Frame Material | Aluminum |
Primary Caliber: 12 Gauge
The Mossberg 590A1 is a heavy-duty, military-specification pump-action combat shotgun manufactured by O.F. Mossberg & Sons. Developed as a purpose-built military variant of the Mossberg 590, the 590A1 is the only pump-action shotgun to have passed the United States Army's demanding MIL-SPEC 3443E endurance and environmental testing protocol, which subjects the weapon to over 3,000 rounds of full-power 12-gauge buckshot along with extensive drop, impact, and environmental abuse tests. The 590A1 w...
Country of Origin: United States
Designer: Carl Benson