The 3/4-24 to 5/8-32 458 SOCOM Thread Adapters have unexpectedly sold out due to a large number of orders. This thread adapter allows our GEN5 TriDelta, TMULC and Helical brakes to be mounted on the 5/8-32 threaded 458 SOCOM barrels. Do not worry! We are making many more right now! We just wanted to let you know in case you have some on order or decide to order one or more. Stay tuned for more updates! Thank you for your business!!