Hi @Helsincy !
Did you solve this yet?
I assume you are working on a true first person project.
I am also trying to get ALS-Refactored to work for my NPC.
From what I understood so far, you would need to clone the ALS-Refactored linked animation blueprint for the M4, to make your own one with your own IK functionality.
You’d then reference that in the Overlay map in place of the ALS-Refactor M4 linked animation blueprint.
You may get more help on the ALS discord server. Good luck