I think I know the answer but I want to make sure - will the welding tips I have for my Victor 100 fit the J28 handle?

I'm pretty sure they will but my welding supply guy passed away & I want to make sure before I go in & talk to his son.

I have an old injury from my baseball years that gives me troubles at times, I thought it was OK but lately my right arm thinks the 100 is too heavy & I get shaky trying to hold it steady after a while. (yea, I know the Victor 100 is not that big, but after a while it is just too much for my arm)