The Mossberg 590S Tactical in 12 gauge with an 18.5-inch barrel finished in grey (brand part no. 51606) ships with a factory-mounted Holosun HS407K red dot already installed on the receiver. Mossberg pairs the optic with a front bead backup sight and a fixed cylinder choke, and the 590S’s Shell Stop Interrupter system lets it cycle mini shells alongside standard-length shells. The shotgun feeds from a magazine with a 9+1 capacity, giving a high onboard round count for its 18.5-inch barrel length. Among pump-action shotguns, this 590S Tactical favors shooters who want an optic already mounted out of the box.

Key Specifications

• Chambered in 12 gauge.
• Operates as a pump-action shotgun.
• Features an 18.5-inch barrel.
• Feeds from a magazine with a 9+1-round capacity.
• Includes a factory-mounted Holosun HS407K red dot.
• Backup sight is a front bead.
• Fitted with a fixed cylinder choke.
• Finished in grey.
• Ships at approximately 10 pounds.

Frequently Asked Questions

Does this shotgun include an optic? Yes, a factory-mounted Holosun HS407K red dot ships already installed.

Can it run mini shells? Yes, the 590S platform’s Shell Stop Interrupter system cycles mini shells alongside standard-length shells.

Buy the Mossberg 590S Tactical Shotgun

A factory-mounted red dot on a proven 590S platform is exactly what this Tactical delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.