Yes, 1.5mm is the proper size. Note though that I have a 0.060" rod from the US that is a hair too big. Another colour just fits.
Down the road, when you are cleaning the gun, check for forward/back play in the rod. Once there is some play, bring out the lighter again to tighten it up. If you leave it sloppy, the recoil force will keep moving the rod, and one end will come off and the rod will slide out.



























