This is an optional rear arm brace for the More Massive Droner 3". Made of 2.5mm thick 3K matte twill weave carbon fiber. This brace already comes with the frame kit as standard.
This is the "roll bar" plate used on the Massive and More Massive Droner. Made of 1.5mm thick 3K matte twill weave carbon fiber. Two of these are required per craft.