The P320 is Sig Sauer's most popular striker pistol design and has since seen adoption by the United States Armed Forces along with many law enforcement agencies as their main service pistol. The pistol features a striker action design along with Sig Sauer's signature X-RAY Day/Night sights that use a combination of high contrast coloring along with tritium to ensure a visible sight picture in any lighting environment. The new generation of P320s also feature a serialized and self-contained fire control unit allowing for the entire grip module to be interchanged and customized to one's needs. The XFULL variant features Sig Sauer's popular X-Grip frame with the signature finger groove in a full-size module. This model is California-compliant and features a manual safety and an optics cut that is compatible with DeltaPoint Pro optic footprints. Two 10-round magazines are included along with a Sig Sauer branded hard case.