I have one of the thread adapters. Never been used.
https://precisionarmament.com/product/m4...d-adapter/
If you will use it it's yours. 9/16-24 to 5/8-24 matte black
https://precisionarmament.com/product/m4...d-adapter/
If you will use it it's yours. 9/16-24 to 5/8-24 matte black

