Pistola Kwa M9 Full Metal A Gas ScarrellanteThe M9 pistol is currently the 9mm pistol of choice used by the United States Military. It began development in 1970 and was originally intended for the Italian Army and Police. The pistol was adopted by the US Military after it won the XM9 Trials in 1985 and was reissued as the M9 when it officially entered service in 1990. The M9 was updated in 2006 to the M9A1, introducing an accessory rail for the addition of weapon attachments. The KWA M9