Rx,
I am nearly certain that you can obtain from Transair, a combo Nato which will slpit apart and fit with one the B206 and the other the R22, I have done this but my NR headset is Pilot, and they helped me to sort it out, the diff is the R22 needs a Silver Nato plug and the JR I use has a Gold Nato.
Hope you find the right one.
regards
PRB