SIG SAUER M18 CSS is a semi auto 9mm Luger pistol with a 3.9" barrel and a coyote PVD optic ready slide. This handgun uses a modular polymer grip frame with manual safety in a compact carry configuration. It also includes three 10 round magazines and SIGLITE night sights.Key Features3.9 in. barrel chambered in 9mm LugerSemi auto pistol with optic ready slideCoyote PVD finish with modular polymer grip frame and manual safetyIncludes 3 magazines and SIGLITE night sightsSIG SAUER designs training ready platforms that emphasize realistic controls durable construction and modern accessory compatibility. The brand's airgun lineup mirrors popular centerfire models to support economical practice and familiar handling. From M-LOK furniture to rail ready setups SIG SAUER products are built to help shooters stay consistent between range sessions.