Selected by the U.S. military in January 2017 as the winner of the highly competitive Modular Handgun System (MHS) competition to replace the Beretta M9 series, the M17 is a variant of SIG Sauer's P320 line of striker-fired, semi-automatic pistols which utilize a serialized fire control unit (FCU) that can be readily swapped between grip frames of differing size, with the M17's FCU incorporating a bilateral thumb safety. This pistol is one of many M17s that were issued out in late 2017, with only 3,000 returned to SIG Sauer and later made available for sale on the commercial market. It was also one of the earliest M17s produced, with a two digit serial number: "TF000040." Features illuminated night sights, optics mounting point on the slide, "+P" weight recoil spring, and Coyote PVD metal finish and polymer color. The grip unit is marked size "M." Includes the original box dated "23-DEC-2019" identifying the pistol as "UDM17-9-SURPLUS," two extra magazines, heavy recoil spring assembly, two extra magazines, "M17" marked user's manual, and certificate of authenticity.