Tarbosaurus.org is your one-stop location to find information on OEM and third-party parts and upgrades for the Align T-Rex 450, T-rex 500,and Sonix / HDX-450 and 500 model rc helicopter airframes.
The main component of this site is the database of compatible parts and upgrades. Click on the “Database” link on the right to access it.
I don’t sell anything, I just rate ‘em!