The Beretta M9 is a semiautomatic 9mm (9x19mm Parabellum pistol) was adopted by the United States Armed Forces in 1985. Is is essentially a military specification Beretta 92FS. It won a competition in the 1980's to replace the M1911A1 as the primary sidearm of the U.S. military, beating many pistols including the SIG P226 for cost reasons. It officially entered service in 1990. Some other models remain in use in certain scenarios. The M9 was scheduled to be replaced under a United States Army program (the Future Hangun System FHS), whocj was merged with the SOF Combat Pistol program to create the Joint Combat Pistol (JCP). the JCP was renamed Combat Pistol (CP), and the number of pistols to be bought was drastically cut back. The U.S. Army and Air Force are seeking to replace their M9s through the Modular Handgun System program.