Use this tool to help you assemble the plug of the body wire that plugs into the weapon.

It locks the security clip spring to make it easy to insert the little screw. It also helps in making sure the small and the big pin are mounted correctly.

There is also a version with room for a little magnet.

I added a little tool for the other side of the body cord (or the epee version). This also helps in keeping the wires in the correct order.