Ok the plugin is located here: https://bitbucket.org//ue4-vr-grippable-motion-controller-plugin
I haven’t built all .dlls for it yet so you’ll need a compiler setup to use it with blueprint only projects and I am currently making sure that it packages. This is just an early version to see how hard/easy it is to use off the bat and if people have issues.
I would highly suggest that you read the readme, there are some things of note with using it that will save me (and you) some pain in debugging and using the plugin.