Per the included certificate, this pistol was part of the initial deployment of the U.S. M17 MHS Pistol in American service. A variant of the SIG 320 modular pistol, the M17 integrates an ambidextrous thumb safety to the modular fire control unit, with illuminated night sights, optics mounting point on the slide, "+P" weight recoil spring, and coyote brown metal and polymer finish. The grip unit is marked size "S". The shipping box is a numbered match to the pistol and identifies it as "UDM17-9-SURPLUS", and contains two extra magazines, cable lock, and papers.