Sig Sauer P320 M18 CSS Coyote Brown 9mm 3.9 Barrel 21-Rounds

Overview

SIG Sauer M18 CSS Features The SIG Sauer M18 CSS is built on the proven P320 platform in the compact M18 configuration delivering the same MHS slide geometry serialized M18 frame and striker-fired reliability that the U.S. military selected as its standard sidearm in civilian-legal form chambered in 9mm with a 3.9 barrel at 28.1 oz and 7.25 overall length. The MHS slide configuration features an optics-ready cut for direct mounting of compatible red dot sights without additional machining and Siglite front and rear night sights provide enhanced visibility in low-light conditions as a fully capable standalone iron sight solution or backup to a mounted optic. Ambidextrous controls accommodate both right and left-handed shooters without modification and the manual safety provides an additional layer of carry confidence for shooters who prefer a traditional manual safety on a striker-fired platform. The Coyote PVD slide finish pairs cohesively with the Coyote polymer grip module for a unified and distinctive appearance that provides durable corrosion and wear resistance through sustained daily carry exposure while the non-reflective finish maintains a low-profile tactical aesthetic. The 21+1 capacity gives the M18 CSS a meaningful firepower advantage in a compact frame making it one of the highest-capacity compact carry pistols available in its class without requiring a larger grip module or extended magazine that compromises concealability. The serialized M18 frame gives this CSS variant genuine military heritage provenance that makes it a desirable platform for collectors and enthusiasts who want the actual M18 frame designation alongside proven duty-grade P320 Compact performance. The SIG Sauer M18 CSS reflects SIG s commitment to making military-grade handgun performance accessible to civilian shooters in a compact and carry-friendly format that retains the core features and serialized frame that make the M18 designation meaningful. The combination of MHS slide optics-ready cut Siglite night sights ambidextrous controls manual safety Coyote PVD finish and three included magazines spanning 17 and 21-round capacities creates a complete and immediately carry-ready package backed by the same platform trusted by the U.S. military. For everyday carriers duty professionals and SIG enthusiasts who want a compact 9mm M18 CSS with military heritage high-capacity magazines and optics-ready capability in a Coyote PVD finish the SIG Sauer M18 CSS is available now at GrabAGun. SIG Sauer M18 CSS Specifications Manufacturer: SIG Sauer Model: M18 CSS Type: Semi-Automatic Striker-Fired Pistol Caliber: 9mm Color: Coyote PVD Finish: Coyote PVD Slide Coyote Polymer Frame Weight: 28.1 oz Barrel Length: 3.9 Capacity: 21+1 Action: Striker Fired Sights: Siglite Front and Rear Night Sights Optics Ready: Yes Slide: MHS Configuration Grips: Coyote Polymer Grip Module Controls: Ambidextrous Safety: Manual Safety Overall Length: 7.25 Magazines Included: 2x 21-Round 1x 17-Round Available At: GrabAGun