All of the below were used on Ti Ascalon Extensions. I'm unsure if the carbon ascalons use the same adapters or not.
Felt IA(uses inner bolt holes, increases reach 30mm over universal adapters, 115mm width between ascalon bolt holes) - angle 15 degrees - $300 shipped in cont US
Felt IA(custom made to add 35mm reach(65mm in total over universal adapters), uses inner bolt holes) - angle 20 degrees - $300 shipped in cont US
Images of all items
https://drive.google.com/...vkKoJYNv?usp=sharing
Felt IA(uses inner bolt holes, increases reach 30mm over universal adapters, 115mm width between ascalon bolt holes) - angle 15 degrees - $300 shipped in cont US
Felt IA(custom made to add 35mm reach(65mm in total over universal adapters), uses inner bolt holes) - angle 20 degrees - $300 shipped in cont US
Images of all items
https://drive.google.com/...vkKoJYNv?usp=sharing