adywan said:
I forgot to mention about this when talking about the changes between the SD version and the new HD version. The Special Edition footage will be removed. I wanted to do this originally when i was working on the SD version, but couldn’t pull off what i wanted to do. Even though in one of the behind the scenes docs ( i think it was the dewback one) that they claim to have found the original sandtrooper costumes used in ANH, they lied. What we see on screen in the Special edition sequence are ROTJ stormtroopers with sandtrooper bits added. The helmets are slightly squashed, same as the ROTJ ones and they have the solid black mouth. What you’ll see in the HD version will a slightly extended version of the original 1977 scene using accurate sandtroopers. The CG dewbacks really don’t hold up too well either, especially their riders.

There could simply be different manufacturers, in-universe.