M4A1-Customized is a variant of the M4A1-Silencer featured in CrossFire: Legends.
As the name suggest, M4A1-Customized features a different, more futuristic model with removed carrying handle, different handguard and an unusable holographic sight. It comes with 39 rounds magazine (117 in reserve), enhanced accuracy and features a special skill where players can get temporary reduced recoil upon finshing reloading.
Players can customize this gun with their own name or slogan on its body, up to 8 characters length. Only letters and numbers are allowed.