I watched the making of Mandalorian season 2 over and over and instead of focusing on pictures, i tried to listen for words. They said about the Asohka's that they had to keep making them bigger to fit the components and batteries(obviously because of them being more flat than round). Even though they didn't talk about the Luke Hero at all, it would be WRONG to draw the same conclusion for the Hero hilt as Halliwax showed us earlier, the shot with the hilt laying on the table. Looks normal sized to me and the whole hilt is cylindrical. One might ask, which one is it? The belt hanger or the stunt? Right now, its hard to say based on that emitter nipple(I would assume the belt hanger because it doesnt look FX and the Rylo, which i believe it is, is not FX.) So that brings us to the stunt. To me, it looks no bigger in the hand than the belt hanger did. There is an obvious thin neck and an obvious box. Could they have molded a resin stunt based off the Rylo, and hollowed the insides like the Asohka's to accommodate electronics? yes, possibly...and they wouldn't have had to change the size or thicken the neck at all to do it. Still conjecture, i know but that's where i'm leaning based on what we have at the moment.