These would be nice
I currently break down my Steyr to fit in the case I have and this would save me from losing my hex wrench. I also remove my grip assembly because it's offset and sticks out far enough to cause issues in the case. Looks like this design would be easily adaptable and scalable to different knob diameters and hex bolt sizes? Going to measure up the grip mounting screw and see. If I could take the whole thing down without tools that would be great!