Buy your Mossberg 590 MLOK Tactical Shotgun from BattleHawk Armory today! The Mighty 590. With decades of military and law enforcement duty and countless performance and success stories under its belt, it's no surprise that the 590 chosen for duty around the globe is also the ideal choice for home defense needs.Hands down this is the ultimate tactical shotgun. The bullet-proof 590 stands strong with one of the most rugged constructed pump shotguns known to man. That makes the shotgun shoot smoothly and reliably with any ammo you feed it with. The receiver is drilled and tapped with a set of Ghost-Ring sights.