How to get JAK Harbinger conversion kit in MW3 and Warzone

The JAK Harbinger conversion kit in MW3 and Warzone Season 4

MW3 and Warzone Season 4 are underway, and to kickstart the new season, Sledgehammer Games has released the JAK Harbinger conversion kit. Here’s how to get the new Aftermarket Part for the M4.

The first Aftermarket Part of Season 4 has been released, and it’s quite the attachment. When equipped, the JAK Harbinger converts the M4 into a .50 Cal assault rifle of all things.

In this configuration, the M4’s fire rate, recoil, mobility, range, and handling are all worsened. However, this massive trade-off is a result of this conversion kit’s real selling point. It increases the M4’s damage by 197%, for a staggering 101 damage per shot to the torso.

Here’s how you can get the Jak Harbinger conversion kit in MW3 and Warzone to try out this one-of-a-kind, hard-hitting AR.

How to unlock JAK Harbinger in MW3 and Warzone

The JAK Harbinger conversion kit is unlocked by completing any five weekly challenges from Season 4 Week 1. These challenges can be completed across multiplayer, Warzone, and Zombies, or even a combination of the three.

After you have finished five challenges and unlocked the JAK Harbinger, the Aftermarket Part can be equipped on the M4 in the Conversion Kit attachment slot. To do this, you’ll first need to reach level 20 on the MW2 assault rifle.

JAK Harbinger conversion kit's pros and cons in MW3 and Warzone.

All MW3 & Warzone Season 4 Week 1 Challenges

Complete any five of the following Week 1 challenges in Modern Warfare 3 and Warzone Season 4 to get the JAK Harbinger conversion kit.

MultiplayerZombiesWarzone

For more great Call of Duty content, check out the best Warzone loadouts and MW3 loadouts to dominate your lobbies. Also, these breakdowns on the best snipers, assault rifles, and SMGs to use will make winning more Warzone matches a breeze.