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This article is currently under construction. It may contain little or inaccurate information.
For the other AR-15 derivatives in Siege, see R4-C, 416-C Carbine, C8-SFW, C7E and AR-15.50
"This government-issued assault rifle has been customized with additional features."
— In-game description


The M4 is an assault rifle set to be featured in Tom Clancy's Rainbow Six Siege in the Operation Grim Sky expansion pack. It will be available for use by the Operator Maverick.

Weapon Attachments

Sight
Barrel
Grip
Under Barrel


Trivia

  • Maverick's has him equipped with the M4, which is customized with a Suppressor and an Angled Grip.
  • This M4 has a custom trigger group which is capable of both three-round burst and fully-automatic, alongside semi-automatic fire.