M-4

A form of M4 — broad money

Meanings

nounM-4 (plural M-4s)

plural M-4s

  1. alternativeAlternative form of M4 (firearm)

    Iraqi security forces will start replacing their AK-47 rifles this year with the M-16s and M-4s used by U.S. troops, which will help track the weapons and cut down on theft, a senior U.S. military official said.

    2007 August 9, “M-16s a step forward for Iraqi forces, says US”, in Reuters
    2 more examples

    The legislation specifically bans several AR-15 style weapons by name. The weapons — semi-automatic variants of the M-4 and M-16 type weapons issued to US troops — have been used in a plethora of shootings in the past few years, including the October 27 attack on the Tree of Life synagogue.

    2018 December 17, Evan Simko-Bednarski and Taylor Romine, “Pittsburgh City Council to consider ban on assault weapons, bump stocks”, in CNN

    “To stay open, the senior enlisted leader of U.S. Forces-Afghanistan Forward said he needed people to cover security,” Duncan wrote. “Personnel Recovery Task Force (PRTF) Pilots, maintainers and support personnel donned their vests, helmets and M-4 rifles and manned defensive fighting positions.”

    2021 October 14, Oren Liebermann, “CENTCOM disputes Air Force account of attempted hijacking at Kabul airport during Afghanistan evacuation”, in CNN
Cite this entry
APA

M-4. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/M-4

MLA

“M-4.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/M-4. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “M-4,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/M-4.

Source: M-4 on Wiktionary, CC BY-SA 4.0.