The SIG SAUER M17 CSS is a full-capacity civilian version of the U.S. military’s Modular Handgun System sidearm. Built on the P320-based platform, this full-size striker-fired pistol features a 4.7-inch barrel, Coyote PVD finish, and a 21-round capacity magazine that delivers military-grade performance in a civilian package. Selected for its innovative modularity and uncompromising performance, the M17 CSS brings proven military engineering to the civilian market.
The M17 CSS comes equipped with the MHS slide configuration and is optics-ready for direct mounting of red dot sights. Siglite front and rear night sights provide reliable visibility in all lighting conditions. The Coyote PVD finish enhances corrosion resistance while maintaining aesthetic appeal. Ambidextrous controls and a manual safety are standard features.
This pistol ships with three magazines—two with 21-round capacity and one with 17-round capacity—offering maximum flexibility and extended firepower. The M17 serial number series marking combines military heritage with modern functionality. The full-size frame and steel construction ensure durability under extended use, making it ideal for duty, home defense, or range use.
