Just picked a new to me XTR 970 E-Type Front Der. that I am going to use on my new Epic 29er frame. When I mount it the bb part comes off and the derailleur mounts to the frame via a mount Specialized has. However I seem to missing a small part or two that Shimano would include with the front der.

So does anyone have the small half moon looking silver adapter piece that comes in the parts bag with shimano e-type front derailleurs?