The JAK Cataclysm transforms the RPK from an LMG into a .50 Cal sniper rifle, embodying all the characteristics of a meta weapon in Modern Warfare 3 multiplayer and Warzone.

Conversion kits have revitalized several underutilized weapons. For instance, the JAK Patriot conversion kit has turned the M16 from one of MW3’s weakest assault rifles into one of its best, thanks to the full-auto fire capability.

Similarly, the JAK Revenger kit has upgraded the BP50 from an underwhelming AR to a formidable SMG that can compete with top short-range meta weapons.

Sledgehammer Games also struck gold with the JAK Raven kit. While the MCW is a solid AR, it excels even more as a fast-firing SMG. Likewise, the RPK has always been reliable, but the new JAK Cataclysm conversion kit elevates the LMG to another level.

How to Unlock the JAK Cataclysm Conversion Kit

Unlock the JAK Cataclysm by completing five weekly challenges from Season 5, Week 2. These challenges can be completed in multiplayer, Warzone, Zombies, or a combination of these modes.

After completing five challenges and unlocking the JAK Cataclysm, you can equip the Aftermarket Part on the RPK in the conversion kit attachment slot. To unlock this slot, players must first reach Level 19 with the RPK.