USED Mossberg 500 FLEX Tactical 20 Gauge Pump Action – 18.5" Barrel, Adjustable Stock, Pistol Grip

The Mossberg 500 FLEX Tactical is a versatile 20-gauge pump-action model built around Mossberg’s proven Model 500 platform. It features an 18.5-inch cylinder-bore barrel, a 3-inch chamber, and compatibility with both 2¾-inch and 3-inch shells.

This configuration uses Mossberg’s modular FLEX system with an adjustable stock, pistol grip, and accessory-ready forend. The receiver is drilled and tapped for an optic mount, while the top-mounted ambidextrous safety keeps the familiar Mossberg control layout intact.

This example appears to be in very good condition and includes the original Mossberg box, owner’s manual, cable lock, and factory materials shown.

Specifications