Nerf Rival Hades XVIII - 6000 grip attachment

https://youtu.be/xImQr1ViJ3s

Please watch the video for explanation.

Source file is the file with ext rsdoc (for DesignSpark Mechanical)

Update: I placed a version 2 of the inner piece as a user feedback that after long use of the grip, it sometime detach, this version 2 inner piece have a little increase in the catch size which may help.