Sig's P320 M18 carry pistol is based on the US Military M18 model. It features an optic-ready coyote PVD slide with a removeable night sight plate compatible with Romeo1PRO and Deltapoint PRO optics. The M18 also utilizes a carry length coyote grip module, ambi manual safety, and a striker fire action with a short tactile reset. It includes three 10-round magazines.
