The United States Marine Corps has
officially adopted a side arm as of last year. The
Colt CQBP M45A1. Also known as the M45A1 Close Quarters Battle Pistol. It'as sort of a modern updated version of the original 1911 model that was the standard sidearm of the U.S. military up until 1986. It holds 7 rounds of .45 ACP in the magazine; virtually unchanged since 1911.
Why seven rounds? Other companies like
Sig Sauer,
Double Star, and
Nighthawk Custom have 8 round magazines of the .45 ACP round. Why not go for the more powerful 10 mm round?
The United States Army
just rejected the latest version of thier
Beretta M9A3 . Holding 17 rounds of the 9x19 mm bullet, it's been the Army standard service pistol since 1986.