Tuff Wheel Adapter Horn Contact Ring

I finally decided to investigate why the horn on my 72 demon wasn't working and I discovered that the connector tab on the horn contact ring for the switch's ground wire was broken off. Probably unrelated but the plastic insulator that is sandwiched between the copper ring and adapter looks pretty deteriorated as well.

Is it possible to remove/replace the copper horn contact ring on the bottom of a tuff wheel steering column adapter?

Here's a picture (not mine) of what I'm referring too:

Column adapter horn contact ring.jpg