| The M4A1-Custom rifle has a red dot sight, silencer and improved butt plate. Compared to the regular M4A1, the performance is enhanced by the sight.|
- Weapon description
M4A1-Custom is an advanced version of the standard M4A1, boasting superior accuracy and significantly less recoil. It is equipped with a suppressor, red dot sight, folding stock, and an unusable laser sight & flashlight. The silencer is great for concealing the user's location while firing.
The red dot sight also gives the user almost 100% accuracy whilst aiming down sights, which makes this a great weapon at both long and close range. However, the gun's rate of fire slightly decreases while using the red dot.
- Moderate-high damage dealing.
- High accuracy.
- Medium rate of fire.
- Usable red dot sight.
- Higher accuracy when using red dot sight.
- Loses accuracy when sprayed for too long.
- Slower rate of fire when using red dot sight.
Available in all CrossFire versions
- In many CF versions, this gun is the first Black Market weapon to be sold.
- In some versions, the M4A1-Custom's silencer is bigger like M4A1 Silencer, while some version still uses the smaller size.
- This is one of the hardest gun to win in CF Vietnam due to the fact that its crate has both permanent and temporary variant. Lots of people ended up getting a temporary M4A1-Custom for a few years and still cannot get a permanent one.
- However, a certain event that if accounts created within 15 to 21 December 2016 reach Staff Sergeant, they will receive permanent M4A1-Custom, making many veteran players go mad since they spent a lot of money and time to obtain.
- Later, many players creating accounts in Phục Kích Mobile got a giftcode of this weapon for each successfully created account.
- From 1 to 5 August 2017, any player who spend 229 Vcoin will get this gun permanently.
- CrossFire China use the original sound of M4A1 for all variant of M4A1-Custom, not silenced sound. This sound glitch won't be fixed.
- This gun used to be available in CF Philippines Mega Lotto/Black Market since its release.
- After the introduction of the New Black Market, this gun was permanently removed in the Black Market and now serves as a junkie prize in some cash capsules.
- This weapon is available in Battle Royale mode but receives a brand new model along with new texture. Also, it has the sprinting animation when running in the said mode.