This is the first video I've seen that seems to "prove" the pieces are metal. I have not seen them in person, but I'd say from the video they sound more like metal than they look
If we needed more verification on the quality of the sabers here’s another video:
Peace & Justice
Power & Control
The one thing that I found weird, normally people when building the sabers stick to the normal Jedi or sith weapons those being peace and justice, and power and control. For me, those are kinda boring every known Jedi, or Sith has a style resembling those this is my custom saber. If I wanted a legacy saber (which I do) I wouldn’t be at Savi’s. Elemental and Protection interest me the most.
*Side note: Person in the video doesn’t know much about Star Wars in terms of sabers.