The extremely common and versatile 12 gauge makes for an excellent choice for hunting, competition, or self-defense. Some of the best 12 Gauge Semi-automatic Shotguns are manufactured by companies we carry, like Beretta, Benelli, Franchi CZ-USA, Sauer, and Stoeger. Models vary from 12 Gauge semi automatic hunting shotguns to tactical 12 Gauge Semi Auto shotguns meant for defense.