RAW Rapid Huma Air Wika Reg tester

After converting my Raw HM1000X from .25 to .22 I am going to try a Huma adjustable reg and test gauge that screws into the bottom of the blanking plug. Do I need any other adapters for this to work?

Might want to confirm that it'll work with the HM1000X since it is spec'd for the HM1000.