It might be. But when it's inserted into the saber it's held in place by and aluminum part that needs to fit it in place and that part seems to have been machined as exact mirrors on two different versions of the prop. I was wondering if when they made the master, this aluminum piece. Which looks like a M or Psi (with a flat top and three prong leggs) might have been machined a two parts at once and then cut in half. This could have generated two parts that were exact mirrors of each other.
It's hard to say.
With the other prequel sabers there were multiple heroes but the rule has been: one hero gets cast as a master and then all the stunts show the same weird details in the different stunt iterations.
But with this one, it looks like two rounds of mastering and castings happened, as we can see at least two versions of the mace saber in master, belt stunt, and fighting stunt form.
