"Experimental version of the M4A1-Custom Crystal re-balanced for more stable shooting. Together with its high quality silencer, dot-sight option and special crystal skin this item is a must have for any collector."
- in-game description

M4A1-Custom Crystal is an assault rifle variant of M4A1 Custom featured in CrossFire.


M4A1-Custom Crystal has the same feature as original M4A1-Custom, besides that it has a light blue crystallized texture to the gun.

One of the major characteristics about the M4A1-Custom Crystal is the firing rate, which has been increased, compared to other variants of M4A1-Custom.

However with higher rate of fire, it is compensated with decreased damage and slight increased recoil while firing, making it weaker than the original M4A1.


  • Moderate high damage dealing.
  • High accuracy.
  • Medium rate of fire.
  • Usable red dot sight.
  • Higher accuracy when using red dot sight.
  • Quiet firing noise


  • Loses accuracy when sprayed for too long.
  • Slow rate of fire when using red dot sight.


  • CF Japan
  • CF Vietnam
  • CF Philippines
  • CF West
  • CF Brazil


  • Initially, the Bag Icon, Item Icon and HUD icon of this gun is actually a M4A1-S Crystal with the crystal-painted scope instead, notably its buttstock and silencer, but the in-game model is correct. This error was finally fixed after about 6 years.


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