Would you be interested in selling one Fitz?Engineer here we call those kip handles or adjusting handles check McMaster Carr. I can look at tonight and verify, but made in USA now may be entertaining.
On the plus side I have two of those sets as new I received from Mr. Cross years ago. I have a rifle he did some things to in a very very early A4 stock, before the selection if I’m not wrong.
There are very subtle differences between the KMW long lever and the "copies" that are made by someone else.Terry Cross might be able to tell us.