The Mossberg 590A1 is an all-business 12-gauge pump-action shotgun
purpose-designed for a security and defense role. It features a
parkerized finish, a heavy 20-inch cylinder bore barrel with 3-inch
chambers, ghost ring sights, a synthetic stock, and a capacity of
8+1. A testament to the reliability of the 590 (and 500) platforms
is the fact that they are the only pump action shotguns ever to pass
all stringent U. S. Military Mil-Spec 3443 standards. Don’t trust
your safety & security to anything less than a Mossberg!
Specifications:

Model: 590A1
Action: Pump
Gauge: 12 GA
Barrel Length: 20″
Capacity: 8 + 1
Chamber: 3″
Length: 41 3/4″
Weight: 7 1/4 lbs
Drop: 1 1/2″ @ Comb & 2 3/8″ @ Heel
Stock: Synthetic
Finish: Parkerized