Pistol-caliber choices are personal and everybody has an opinion. But opinion isn’t fact, and there is some misinformation out there that needs to be addressed.
Many readers are under the impression that U.S. special operations forces have returned to using .45 caliber pistols since the adoption of the M9 9mm in 1985.
This has some truth to it, but in most cases SOF units use 9mm, experts maintain.
Read the rest of the article: http://kitup.military.com/2014/07/sof-prefers-9mm-45-caliber.html