The SIG SAUER M18 is the official sidearm of all branches of the U.S. Military and the official sidearm of the U.S. Marine Corps, bringing unprecedented accuracy, extreme reliability and unmatched durability to the civilian market. This compact 9mm features an optic-ready slide compatible with ROMEO‑M17 and Deltapoint Pro footprints, SIGLITE night sights with a removable night‑sight rear plate, and a manual safety. The 3.9-inch Black DLC carbon steel barrel pairs with a coyote PVD optic ready/serrated stainless steel slide and coyote PVD stainless steel frame with beavertail and Picatinny rail.
The M18 CSS ships with three 10-round magazines and features a modular polymer grip in the medium carry profile size. Siglite night sights offer dependable low-light visibility while the Coyote PVD finish provides durability and a sleek, non-reflective appearance. The M18 CSS is the compact variant of the U.S. military’s Modular Handgun System, offering full-size firepower in a carry-friendly platform. Featuring a 3.9-inch barrel, Coyote PVD finish, and striker-fired action, this optics-ready pistol is built for reliability, adaptability, and modern defensive use.
