[Neoblackdragon]

It most certainly is not metal. You can easily tell by the close ups it's not metal. It will likely just be the exact same material as the Legacy Saba sword.

First and foremost the thing would be very heavy and expensive. Then of course safety standards. I'm just 98% sir that making the blade metal was never ever an option.

The Blade Blaster?

You need the orange cap for realistic looking guns. No one would think these bright red and white things are hand guns. Basically it's form and overall color is your orange cap. It looks like a fictional space gun so no issue there.