I have a friend who picked an original DISC rifle up and it did not come with the C tool. Is there anything that can be used in its place. Hecalled last night asking and I have never had an original one so, i am not sure how they fit. So no clue where to start with a make shift and I do not have the gun in front of me to look at.

I was hoping that maybe a reworked open end wrench, maybe? Or a line wrench?