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Overview BF4 Hardline

The MX4 is a Personal Defense Weapon featured in Battlefield 4.


The MX4 is unlocked by completing the Silver assignment in South China Sea by scoring 6000 points. It features a Kobra, Flash Hider and Stubby Grip. It sports a Worm Urban paint.


It is the default weapon for the Engineer class, and comes equipped with a Reflex sight, Laser Sight, and Ergo Grip. It has above average power for a PDW, with a moderately high rate of fire, and medium-high (but manageable) recoil. Overall, it is a balanced PDW for close-medium range.



  • The Mastery Dog Tag for the MX4 still shows the weapon equipped with a longer barrel.