The XM17 Modular Handgun System (MHS) competition was a United States Army and United States Air Force competition for a new service pistol. The Modular Handgun System was solicited by a Request for Proposals in September 2015 and is anticipated to be the next U.S. military standard side arm replacing the Beretta M9 and the SIG Sauer M11. The U.S. Marine Corps also participated in the program to have input on source selection.