How to unlock the JAK Voltstorm in MW3 and Warzone

The sad day has finally arrived. The final new Aftermarket Part in Modern Warfare 3, the JAK Voltstorm, is here.

One of the best new features added to Call of Duty in recent memory, Aftermarket Parts will be remembered fondly by players. For most of the weekly updates throughout MW3’s live service campaign, Aftermarket Parts have been made available to unlock, sometimes completely changing a gun’s appearance and performance.