How to unlock the JAK Widemouth Barrel in MW3 and Warzone

Season five is officially live in Call of Duty: Modern Warfare 3 and Warzone. Players have a fresh set of weekly challenges to complete if they want the latest Aftermarket Part added to the game: the JAK Widemouth Barrel.

What is the JAK Widemouth Barrel in MW3 and Warzone?

Are you going to try out this new Aftermarket Part? Screenshot by Dot Esports

The MORS, a popular sniper rifle from CoD: Advanced Warfare that returned in MW3, is the recipient of the first Aftermarket Part in season five. It’s called the JAK Widemouth Barrel and it’s described as “a widemouth barrel crafted to accommodate magnetic ball bearings that shatter upon firing, creating a barrage of small and lethal projectiles,” according to Activision.

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