Mossberg SA-20

About the Mossberg SA-20

The Mossberg SA-20 is a gas-operated, 20-gauge semi-automatic shotgun marketed under the Mossberg International line. Designed as a lightweight, soft-shooting autoloader chambered for both 2¾-inch and 3-inch shells, it uses a self-regulating gas system to cycle a wide range of field and target loads. The SA-20 is offered in all-purpose field, Bantam, turkey, and tactical configurations, with barrel lengths from 20 to 28 inches and interchangeable choke tubes.

Introduced to give Mossberg an affordable gas-operated 20-gauge autoloader, the SA-20 became a popular entry-level semi-auto for upland and small-game hunters, clay shooters, and recoil-sensitive or youth shooters, with Bantam models offering a shortened length of pull.

Mossberg SA-20 specifications

Sold under the Mossberg International brand; the SA-20 family is produced in Turkey for O.F. Mossberg & Sons. Tactical models use a 20-inch cylinder-bore barrel with a Picatinny-compatible rail, while field models ship with ventilated-rib barrels and screw-in chokes.