The limited M18 Commemorative Edition of the official U.S. military service pistol shares many of the components, while it features the same coatings and markings of the firearm that was awarded a U.S. Army contract for the modular handgun system (MHS), and which was recently chosen as the official sidearm of the U.S. Marine Corps. Only 5,000 of the M18-Commemorative pistols are being manufactured, and include all the required modular handgun system markings including the U.S. Army's unique identifier (UID) and SIG SAUER Cage Code, making the M18-Commemorative identical to the pistol currently in service with the U.S. military.