Change the VR hands into guns that fire in VR

I want to make the VR hands, turn into a gun which I already have imported into the project, but then every tutorial I have followed have not worked and there aren’t many out there with my question. I have turned the hands into the weapon by making the hands not visible and putting the gun there and putting the blueprint code in the event graph of the motion controller, but still, nothing would fire. And I’m also using a Vive.