M4CQBR is an assault rifle in CrossFire.


The M4CQBR is a modification of M4A1 with a replacement upper receiver that developed by the US Navy. The purpose of the CQBR remains to provide operators with a weapon of submachine gun size, but firing a rifle cartridge.

It also modified with a retractable buttstock, a handguard, a silencer, and a holographic sight.


Unlike the M4A1-S, this weapon has a faster firing speed, but has slow reloading and drawing time. It also comes with functional holo-sight which is useful for long range battle. When using the holo-sight, the recoil is reduced greatly and accuracy increases, but it sacrifices some of the firing speed.

This weapon able to hold 30 rounds per magazine.


  • High accuracy.
  • Moderate damage dealing.
  • High rate of fire.
  • Low recoil.
  • Usable holographic sight.
  • Quiet firing noise.


  • Loses accuracy when sprayed in long distance.
  • Slower rate of fire when using holo-sight.
  • Slow reloading speed.
  • Slow drawing speed.


  • CF China
  • CF Russia
  • CF Vietnam
  • CF Brazil
  • CF West
  • CF Korea
  • CF Philippines



  • The complete CQBR-equipped carbine, which based from the M4CQBR project by the US Navy named as MK.18 Mod0.
  • M4CQBR resembles the M4 Commando without the Scope, Front Grip and retracted buttstock.



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