M-9 Handgun

Did you know that in combat, it's mostly officers who carry handguns? Most enlisted don't. Notable exceptions are military police, and special operations forces. The M-9 pistol is the primary sidearm for all of the military services. It entered the services in 1985 (1990 for the Army), pushing out the older M-1911A1 .45-caliber pistol, a weapon with an 80-year military history, and 4-inch-barrel, .38-caliber revolvers. The adoption of the M-9 pistol was the result of a congressional mandate to equip all U.S. services with a standard handgun.
The Colt-designed M-1911A1 served soldiers well in many wars; some older soldiers argued, why replace it? As with other Army weapons, competition proved the M-9 to be the best sidearm.
To get the nod, the M-9 had to meet strict requirements for functional reliability, speed of first shot, rapidity of fire, speed of reloading, range, penetration and accuracy to 50 yards. Also, the pistol's components had to be interchangeable, so a working weapon could be pieced together from the parts of others.
The M-9 went through a series of rugged tests to evaluate its functionality. An extreme climatic test checked its ability to withstand temperatures between minus 40 and 140 degrees. A 10-day salt water immersion and humidity trial tested its resistance to corrosion. It tackled mud, sand, dirt and water to test its operation under adverse field conditions. A fully loaded weapon was dropped four feet onto a hard surface to test for accidental discharge.
To test the ability to swap pistol components, testers fired and then disassembled 10 weapons. The parts were randomly put back together, then the weapons were fired again with no problems. If needed, the parts of weapons can be cannibalized to create a working pistol from broken ones.
Type: Semiautomatic pistolEntered Army service: 1990Specifications:Caliber: 9mmLength: 217mmBarrel length: 125mmWeight: 850 gMagazine capacity: 15 roundsRange: 50 m