The Mossberg 500 Flex All Purpose shotgun in 12 gauge with a 28-inch vent rib barrel (brand part no. 50121) uses Mossberg’s modular Flex system for accessory and stock interchangeability. Mossberg finishes this 500 Flex in matte blued steel with a black synthetic stock and ships it with Full, Improved Cylinder, and Modified Accu-Set chokes. A tang-mounted safety and twin bead sights round out a versatile field gun. Among pump-action shotguns, the 500 Flex All Purpose favors shooters who want a modular platform for swapping stocks and accessories.

Key Specifications

• Chambered in 12 gauge with a 3-inch chamber.
• Features a 28-inch vent rib barrel.
• Feeds from a tubular magazine with a 5-round capacity.
• Includes Full, Improved Cylinder, and Modified Accu-Set chokes.
• Runs a tang-mounted safety.
• Equipped with twin bead sights.
• Barrel finished in matte blued steel.
• Built with a black synthetic stock on the Flex modular platform.
• Overall length is approximately 36.5 inches.
• Ships at approximately 8.9 pounds.

Frequently Asked Questions

What does the Flex system offer? A modular design that lets shooters swap stocks and forends to reconfigure the gun.

What chokes are included? Full, Improved Cylinder, and Modified Accu-Set chokes.

Buy the Mossberg 500 Flex All Purpose Shotgun

A modular 12 gauge pump built around Mossberg’s Flex accessory system is exactly what the 500 Flex delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.