The Kirby Morgan 515-023 Communication Assembly With Post is sold as a complete set, ready to be mounted in your helmet.
Note: This assembly does not include a Comm Module nut. This assembly does not work with SL-17B.
Was for an upgrade and thanks for making that happen! Much easier to work on this comms modules than the old style.
I have not yet used them.
Everydiver should stop messing around with old posts and get a set of that new new. So easy to swap mics out now.