i would assume the weapon would have to be a child of the inventory item BP, for this reason…i didnt create any of my weapons or consumables etc as they all would need to be compatible with my inventory(in this case JCI) and i needed to establish that first…so in your case(i purchased generic shooter but have yet to open it) i would assume setting up as a component(4.9) like the video and converting the weapons to JCinventory items should do the trick