Didn't know that either.. good to know..never ending list of information..

As to US pistol.. military went he way of the Sig 320 a few years back.. Sig won the latest gov contract

The SIG Sauer M17 and M18 are service pistols derived from the SIG Sauer P320 in use with the United States Armed Forces. On January 19, 2017, the United States Army announced that a customized version of SIG Sauer’s P320 had won the Army's XM17 Modular Handgun System competition. The full-sized model was designated the M17, and the shorter length carry model, the M18.[4] The guns have subsequently been adopted by the United States Army, Navy, Marine Corps, Air Force, and Space Force. The pistol replaces the Beretta M9, as well as several other handguns across the services. There are two color variants, coyote brown and black, for both the M17 and M18, though almost all have been produced in brown.