SIG Sauer M18 CSS 9mm 3.9" Coyote PVD 21+1 M18-9-CSS-MS

SIG Sauer M18 CSS

The SIG Sauer M18 CSS is the compact civilian counterpart to the U.S. military’s Modular Handgun System, delivering full-size 9mm firepower in a carry-optimized platform. Featuring a 3.9-inch barrel, a Coyote PVD-coated stainless steel slide, and a 21+1 round capacity, this striker-fired pistol weighs 28.1 ounces and is built for reliability and versatility. With an optics-ready slide and three magazines (two 21-round and one 17-round), it’s designed for concealed carry, duty, or range performance.

Equipped with the MHS slide configuration, the M18 CSS includes SIGLITE front and rear night sights for effective low-light targeting and an optics-ready cut for direct red dot mounting, enhancing precision. Ambidextrous controls and a manual safety ensure accessibility for all shooters, while the Coyote polymer grip module offers ergonomic comfort in a compact frame. The Coyote PVD finish provides corrosion resistance, and the M18 serial number series reflects its military lineage, blending durability with modern tactical features.

Ideal for concealed carry, personal defense, or professional use, the SIG Sauer M18 CSS combines compact dimensions with high-capacity firepower. Its 7.25-inch overall length and robust steel frame make it a reliable choice for dynamic scenarios, while the striker-fired action and versatile magazine options ensure intuitive operation. This pistol delivers the trusted performance of SIG Sauer’s military-proven design in a civilian-ready package.

Specifications