A light machine gun (LMG) is a light-weight machine gun designed to be operated by a single infantryman, with or without an assistant, as an infantry support weapon. LMGs firing cartridges of the same caliber as the other riflemen of the same combat unit are often referred to as squad automatic weapons.
The Belgian Minimi M249 light machine gun, one of the most widespread modern 5.56 mm light machine guns amongst NATO countries. This one is an M249E3 "Para" model.
IWI Negev of the Israeli Army
Bren light machine gun
.30-06 Browning Automatic Rifle Model 1918
A machine gun (MG) is a fully automatic, rifled auto-loading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles are typically designed more for firing short bursts rather than continuous firepower and are not considered true machine guns. Submachine guns fire handgun cartridges rather than rifle cartridges, therefore they are not considered machine guns, while automatic firearms of 20 mm (0.79 in) caliber or more are classified as autocannons rather than machine guns.
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Czechoslovak 7.62 mm Universal Machine gun Model 1959
A .50 caliber M2 machine gun: John Browning's design has been one of the longest-serving and most successful machine gun designs
A vehicle with a Sumitomo M2 heavy machine gun mounted at the rear