Anechoic DTA91624 Direct Thread Adapter 9/16"x24 Titanium
https://www.tandktactical.com/shop/850059666227-anechoic-dta91624-direct-thread-adapter-9-16-x24-titanium-45307
https://www.tandktactical.com/web/image/product.template/45307/image_1920?unique=1f37b16
Titanium Direct Thread Adapters for the AnechoX suppressors.