The Military Armament Corporation F12 is a modern, AR‑style, semi‑automatic 12‑gauge shotgun designed for tactical, duty, and home‑defense use. It features a gas‑operated system mated to machined aluminum upper and lower receivers, mimicking AR/M4 ergonomics—with familiar pistol grip, adjustable stock, and integrated Picatinny rail for optics and accessories. The F12 has an 18.5″ chrome‑lined barrel chambered for up to 3″ shells and accepts the popular Benelli/Mobil-pattern choke tubes (cylinder, modified, full), offering versatile patterning for different situations. It ships with at least one 5‑round T‑1919 box magazine (expandable up to 20‑round options), plus additional mags, sling, and choke kit. Overall length is approximately 38″, weight about 7 ½ lb, and it includes flip‑up BUIS front/rear sights and a flat-face target trigger. The F12 blends shotgun firepower with familiar AR controls, offering customization, modularity, and magazine-fed convenience for a wide range of roles.