Engineering:Browning machine gun

Browning machine guns are a family of machine gun designs by John Browning, a prolific weapon designer. These include:

• M1895 Colt–Browning machine gun, based on a design dating to 1889, was the first successful gas-operated machine gun to enter service.
• M1917 Browning machine gun, a family of water-cooled machine guns in .30-'06
• M1918 Browning Automatic Rifle, or its variants
• M1919 Browning machine gun, a family of air-cooled machine guns in .30-'06
• M1921 Browning machine gun, a family of water-cooled machine guns in .50 BMG
• M2 Browning machine gun, a family of air-cooled machine guns in .50 BMG

A related term:

• .50 BMG or .50 Browning Machine Gun, a large caliber machine gun round