How to unlock JAK Slash in Modern Warfare 3 and Warzone

Hack and stab.

Modern Warfare 3andWarzoneSeason 5 has introduced a third aftermarket part, the JAK Slash.

JAK Slash equipped to MTZ-556 assault rifle at Yard map in Modern Warfare 3

In this ONE Esports guide, we explain the function of this unique attachment and provide detailed instructions on how to quickly unlock it in the game.

What is the JAK Slash?

This aftermarket part is an underbarrel vertical grip that also functions as a combat knife for most assault rifles, battle rifles, and submachine guns.

It replaces your standard melee attack using a gun-butt with a lethal slash, freeing up the option to equip a grenade or another lethal tool instead of the Throwing Knife.

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Additionally, it enhances your vertical recoil control while boosting your movement and tactical sprint speed.

These benefits come at the expense of hip fire and tactical stance spread accuracy.

JAK Slash aftermarket part under the underbarrel option in Modern Warfare 3 gunsmith

Here’s how to unlock JAK Slash in MW3 and Warzone

To obtain this aftermarket part, you need to complete Week 3 challenges in Modern Warfare 3 and Warzone Season 5.

You must finish at least five out of the 21 tasks available across Multiplayer, Zombies, and Warzone.

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Here are the MW3 and WZ Season 5 Week 3 challenges:

Upon completing five challenges, you’ll be able to equip the JAK Slash in the gunsmith as an underbarrel attachment.

An operator shooting zombies with Deadwire Detonators in ONE Esports' image for the guide on how to get Critical Kills in Modern Warfare 3 Zombies

For a quicker way to earn this aftermarket part, we recommend focusing on Multiplayer. Participate in Hardcore Quick Play, Small Map Mosh Pit, or 10v10 Mosh Pit matches.

For Warzone players, concentrate on challenges that involve looting caches and completing contracts.

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