I wager even among Parker 45 that might varies ... I had all and several of Hero 800, Moonman 80 / 80s , and Parker 45 , and did try it before; I can interchange their nibs all of them . and yes the Moonman 80 does teak Parker Cartridge ( I had only try it with an old empty one though ) ; why not try out that Moonman 80 Mini .. probably the best alternative variant and one which Parker never offer , essentially a pocket 45.
That stated ; I think there is enough of a variation , all of them , that one cannot with 100% certainty saying all of them will interhchange on parts , but the C/C part I am fairly optimistic that they do fit
Edited by Mech-for-i, 20 July 2019 - 07:18.