Cedrus adapters are precision-machined from 6000 series aluminum and feature of a combination of M8 and M10 stainless steel and titanium connection hardware. The resulting interface is as stiff or stiffer than any OEM connection, with the added benefit of modularity. This ensures the mast remains forwards and backwards compatible, serviceable, and repairable if needed. The original Axis adapter is compatible with red and black fuselages, but NOT the Fatty. If out of stock, more are already being machined and please order to reserve the adapter with your mast.