Mossberg 90140 OEM 12 Gauge 20" All-Purpose Barrel - Vent Rib, Blued, Accu-Choke

The Mossberg 90140 OEM is a factory 12 Gauge replacement 20" all-purpose barrel designed to swap onto your existing pump shotgun. Built as a true OEM Mossberg component, it gives owners of the Mossberg 500 and Maverick 88 6-shot platforms a versatile do-everything barrel for slug work, buckshot, and birdshot without buying a second gun.

This barrel features a smoothbore profile paired with Mossberg's Accu-Choke system and ships with a full choke set: Full, Modified, and Improved Cylinder. A vent rib runs the length of the barrel to provide a clear sight plane and added rigidity, while the dual bead sights deliver fast, instinctive target acquisition for both slug and shot patterns. The barrel is finished in classic blued steel to match factory Mossberg receivers.

Designed as a direct-fit replacement barrel for Mossberg 500 and Maverick 88 6-shot models, this 20" all-purpose configuration is well suited for home-defense, utility, and field use. Whether you are converting a dedicated slug barrel back to a hunting/utility setup or upgrading a 6-shot receiver into a more flexible platform, the 90140 provides classic Mossberg reliability right out of the box.