Not that I've ever seen. If you hit hard enough the arms will bend. The frame is a fixable carbon fiber.
They are 1.5mm G10 ,Not carbon. Carbon is a bad material for FPV. It blocks the signal.
What are the lenght of quav500 arms?16 cms or something like that...
Good guess. They are 16cm from frame to end of arm with 4 cm going into the frame. So 20cm in total.