The Mossberg 590A1 12 Gauge Barrel is a military-grade pump-action shotgun built to meet Mil-Spec 3443E standards. Featuring a rugged 20″ heavy-wall barrel with Parkerized finish, this 12-gauge delivers unmatched durability for tactical or home defense use.
- Action: Pump
- Gauge: 12
- Barrel Length: 20″
- Capacity: 8+1
- Chamber: 3″
- Weight: 7.75 lbs
- Stock: 6-position adjustable with M-Lok forend
- Finish: Parkerized black
- Sights: Ghost ring rear
Built with a metal trigger guard and reinforced construction, the 590A1 is the only pump shotgun to pass rigorous military specifications. Free FFL transfer to any Tennessee dealer.





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