Elusive Triton Router Adaptor - TRA 359 for Leigh Jig (can anyone help?)

For xmas I was lucky enough to get the Leigh D4R Pro dovetail jig. I currently have the MOF001 Triton Router and was looking forward to combining the two.



But as is always the way, I need a new part. In the Leigh manual there's a table for Template Guide Bushings and Adaptor selection. The MOF001 needs the TRA359 router adaptor to work properly with the jig.



So I called the company where I got the jig. Who told me they had the part, which when I visited they did not have, and subsequently had trouble tracking down what the part actually was. But there was some great customer service as a result of the confusion and later on I was happy to discover that they were shipping the part directly to me from an alternate site.



But what turned up does not look like the part I was expecting. Just some bits of red plastic, a red cap and a black length of rectangular plastic. I had been expecting a metal guide bush plate like the one here:



http://ift.tt/1HYGI2N



So now I'm confused. What exactly is the TRA 359? If I can work that out I might be able to help the supplier source it.



Help.