Sig Sauer P320, M18, Striker Fired, Semi-automatic, Polymer Frame Pistol, 9MM, 3.9 Barrel, PVD Finish, Coyote Tan, SIGLITE Night Sights, Manual Thumb Safety, Optics Ready, 10 Rounds, 3 Magazines, California Compliant 320CA-9-M18-MS-CA The P320-M18 California Compliant comes standard with SIGLITE night sights and a removable night sight rear plate. The slide is optic-ready and directly compatible with the ROMEO-X, ROMEO1 PRO, and ROMEO 2 red dot optics. The slide and grip module are the same coyote tan as the military version, and it includes (3) 10-round magazines. The P320-M18...chosen by the U.S. Marine Corps and the U.S. Military, is now available in California.