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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 featured in Tom Clancy's Rainbow Six Siege in the Operation Grim Sky expansion pack. It is available for use by the Operator Maverick.


The M4 in-game is a well-rounded weapon that possesses decent handling, damage, and accuracy. It possesses the ability to fire in 3-round bursts, as well as a mediocre rate-of-fire and a rather low damage drop-off. That being said, it is still suitable for mid-to-long range engagements.

Weapon Attachments

Under Barrel


  • 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.
  • There is no gas block on the M4's model, which means that in reality, the rifle would not be able to automatically cycle after each shot.
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