M4 or M-4 most often refers to:

M4, M04, or M-4 may also refer to:

Arts and entertainment

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Military

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Weapons

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Aircraft, ships, and vehicles

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Other uses in military

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Science and technology

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Biology, medicine and organic chemistry

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Computing and electronics

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Other uses in science and technology

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Transportation

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Rail

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Road

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Other uses

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See also

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