This combination is consist of an easy top plate, a quick release safety rail and hot shoe for C100/C100 MarkII/C300/C500.
Hot shoe mounts on the top plate with a NATO rail.It provides you a rock solid connection to the original top handle of Canon C100/C100 MarkII/C300/C500 with no wiggly movement.
The NATO clamp is compatible with a NATO rail, and features quick attaching and detaching. Simply sliding onto the NATO rail and tightening down the wingnut screw, you can slide the original top handle back and front on the NATO rail to balance the camera’s center of gravity.
NOTE: Whole Combination idea, please search "SmallRig 1703", I bet you will like it!