M107
M107 most often refers to:

XM107/M107 Barrett rifle, a semi-automatic .50 caliber rifle
M107 (projectile), a 155 mm projectile used by the United States Army
M107 self-propelled gun, an American 175 mm self-propelled gunM107 may also refer to:

Military
German minesweeper M 107
HMS Pembroke (M107), a British Royal Navy minehunter
M107 bomb; see M47 bomb

Other uses
M-107 (Michigan highway), a former state highway in Michigan
M107 (New York City bus), a bus route in Manhattan, New York City
Irem M-107, an arcade system board
Messier 107, a globular cluster in the constellation Ophiuchus
the initial designation of the Soviet Klimov VK-107 aircraft engine