Another interesting history are the dates and models adopted by a US agency. Secret Service switched from the Beretta M9 (made in Maryland at the time) to the P229 in 1998. 20 years later to the Glock 19 and Glock 47 (probably Smyrna, Georgia sourced).

The consumer market in the US no longer trends off government models though. Thin and mini models seem to be more popular, and since most consumers rarely fire their weapon, maintainability and reliability are secondary. The P365 is the most popular in the US at the moment, but it probably has a low duty cycle.