The Mossberg FLEX 590 Tactical in 12 gauge with a 20-inch barrel (brand part no. 51672) pairs the proven 590 platform with Mossberg’s FLEX accessory system for fast stock and forend swaps. Mossberg fits the shotgun with a 6-position adjustable stock giving an 11 to 14.5-inch length of pull range, a matte blued barrel finish, and a bead front sight above a cylinder bore choke. The shotgun feeds from a tubular magazine with a 9-round capacity, making it a high-capacity option in the 590 lineup. Among pump-action shotguns, the FLEX 590 Tactical favors shooters who want an adjustable-length stock dialed to their build.

Key Specifications

• Chambered in 12 gauge.
• Operates as a pump-action shotgun.
• Features a 20-inch barrel.
• Feeds from a magazine with a 9-round capacity.
• Built with a 6-position adjustable stock.
• Length of pull adjusts from 11 to 14.5 inches.
• Barrel finished in matte blued steel.
• Equipped with a bead front sight.
• Fitted with a cylinder bore choke.
• Ships at approximately 8.8 pounds.

Frequently Asked Questions

Can the stock length be adjusted? Yes, the 6-position stock adjusts length of pull from 11 to 14.5 inches.

What is the magazine capacity? A 9-round tubular magazine capacity, higher than the standard 590 configuration.

Buy the Mossberg FLEX 590 Tactical Shotgun

Proven 590 reliability with an adjustable stock dialed to your build is exactly what the FLEX 590 Tactical delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.