Find It Here: https://doublemdefense.com/product/cgs-hyperion-thread-adapter-5-8x24/ 

We accept trade-ins!

Factory New.

UPC: 850002123340

Item Description:

Hyperion thread adapters are 17-4 stainless steel construction, H900 heat treated and have been DLC and SLine coated.  They come in 5/8×24.