The SIG Sauer M18 is the compact version of the U.S. military’s official sidearm, featuring the same modular platform as the P320. It boasts a carry-length grip with a compact slide, a manual safety, and comes optics-ready with a removable rear sight plate for red dot mounting. Utilizes the serialized P320 fire control unit, allowing the user to swap out the grip modules for different sizes and colors. The coyote-tan stainless steel slide features a removable rear plate directly compatible with SIG Sauer ROMEO-M17 and ROMEO-X PRO red dot optics. The slide and frame sport a rugged, corrosion-resistant Coyote PVD finish matching the military-issue sidearm.