Call of Duty: Modern Warfare 3 and Warzone continue to add more Aftermarket Parts to its armory in Season 4 with the JAK Harbinger Kit that turns the M4 assault rifle into a .50 Cal sniper. Here is how to get the JAK Harbinger Kit in MW3 and Warzone.
How to Unlock JAK Harbinger Kit in MW3 and Warzone
Screenshot by Prima Games
The JAK Harbinger Kit can be unlocked by completing five Season 4 Week 1 challenges. The requirement will be in place until Season 4 ends, then players will have to unlock it from the Armory after the season is over.