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The subject of this article appears in Call of Duty: Modern Warfare (2019)
For a similar attachment, see 100 Round Belt.
"Longer belts hold 100 rounds of 5.56 NATO ammunition with a slight weight increase."
— In-game description

5.56 NATO 100-Round Belts is an attachment featured in Call of Duty: Modern Warfare. It is a magazine extension for the FiNN LMG.