Hyperion Thread Adapter

Hyperion thread adapters are 17-4 stainless steel construction, H900 heat treated and have been DLC and SLine coated.  They come in 1/2 x 28 and 5/8 x 24 internal threads.  The Hyperion thread adapter adds .8″ to the overall length.  Hyperion Thread Adapters in 1/2×28 are only for use on 5.56 firearms.