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A light machine gun (LMG) is a machine gun designed to be employed by an individual soldier, with or without an assistant, as an infantry support weapon. Light machine guns are often used as squad automatic weapons. ==Characteristics== Modern light machine guns often fire smaller-caliber cartridges than medium machine guns, and are usually lighter and more compact. Some LMGs, such as the Russian RPK, are modifications of existing assault rifle designs and designed to share the same ammunition. Adaptations to the original rifle generally include a larger magazine, a heavier barrel to resist overheating, a more robust mechanism to support sustained fire and a bipod. A light machine gun is also defined by its usage as well as its specifications: some machine guns - notably general-purpose machine guns - may be deployed either as a light machine gun or a medium machine gun. Deployed on a tripod and used for sustained-fire it is a medium machine gun; if deployed with a bipod with the operator in prone position and firing short bursts it is a light machine gun. Light machine guns are also designed to be fired from the hip or on the move as a form of suppressive fire intended to pin down the enemy. Marching fire is a specific tactic that relies on this capability. Lighter modern LMGs have enabled them to be issued down at the fireteam level, with two or three at the section/squad level. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Light machine gun」の詳細全文を読む スポンサード リンク
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