I thought I would post the melta gun conversion I did for my cadian troopers. Basically, I had 3 metal melta guns which I thought would be a pain to put on my cadians, not to mention the hand on the metal gun does not match up. I used the flamer bits from the cadian sprue to make this work.
These are the two guns we are working with:
This is the plastic flamer bit with the end and the gas valve clipped off:
Three metal melta guns with the tips pried off (no need to clip, they will come off with some gentle bending):
Melta tips superglued to flamer chasis:
Mounted on the Cadians. Veteran Power!
I am also working on a demolition Cadian (this veteran squad will be run as demolitions experts), and I will post when complete!