SIG Sauer P320

The SIG Sauer P320 is a modular, striker-fired, semi-automatic pistol designed for flexibility and adaptability. Its fire control unit (FCU) is the serialized core and can be inserted into different grip modules and slides, making it easy to change size, caliber, and configuration. It was adopted as the U.S. Army's standard sidearm in 2017 as the M17 and M18.