| Browning Machine Gun, Cal. .50, M2, HB | |
|---|---|
 M2HB machine gun | |
| Type | Heavy machine gun |
| Place of origin |  United States |
| Service history | |
| In service | 1921 M2HB from 1933–present |
| Used by | United States, andseveral others |
| Wars | World War II,Korean War,Vietnam War,Cambodian Civil War,Falklands War,Desert Storm,Somali Civil War,Iraqi Freedom,Operation Enduring Freedom,South African Border War |
| Production history | |
| Designed | 1918[1] |
| Produced | 1933–present (M2HB) |
| Specifications | |
| Mass | 38 kg (84 lb), 58 kg (128 lb) with tripod and T&E |
| Length | 1650 mm (65 in) |
| Barrel length | 1143 mm (45 in) |
| Cartridge | .50 BMG |
| Action | Short recoil-operated |
| Rate of fire | 450–600 rounds/min (M2HB) 750–850 rounds/min (M2 aircraft gun) |
| Muzzle velocity | 2,910 feet per second (M33 Ball) (887.1 m/s) |
| Feed system | Belt-fed (M2 or M9 links) |
TheM2 Machine Gun, orBrowning .50 Caliber Machine Gun is aheavy machine gun. It was nicknamedMa Deuce by US troops or simply called "fifty-cal." due to itscaliber.
John Moses Browning (1855–1926) of Ogden,Utah, was theinventor. His military arms were considered to be outstanding. GermanField MarshalHermann Göring said, "If theLuftwaffe (German Air Force) had the Browning .50-caliber, theBattle of Britain would have turned out differently".
Browning began work on the .50-caliber machine gun in July 1917 and it was introduced in 1918. It was a belt-fed, automaticweapon that came in both air-cooled and water-cooled versions. The gun was capable of single-shot or fully automatic fire. The U.S. Army, Army Air Forces, and Navy all adopted it immediately.
The Browning .50 caliber machine gun has been used as avehicle weapon and for aircraft by theUnited States from the 1920s to the present day. It was used duringWorld War II, theKorean War, theVietnam War, as well as during operations inIraq in the 1990s and 2000s. It is the primary heavy machine gun ofNATO countries, and has been used by many other countries. It is still in use today, with only a few modern improvements. Right now, it is the longest serving machine gun in theUS military.
