February 21, 2023

Brooke Afshari
Owner & President

Blackout Defense brings Cryogenic treatment in-house

Phoenix, Arizona – Blackout Defense is pleased to announce that it has brought deep cryogenic processing in-house for use on many of its steel and stainless steel components, including rifle barrels.

Deep cryogenic processing involves using liquid nitrogen to slowly cool materials to -320°F. The parts then soak at that cryogenic temperature for at least 24 hours before being subjected to a slow and controlled heat process that warms the pieces to ambient temperature. Deep cryogenic processing is well known to enhance the mechanical properties of various steels and stainless steels, including austenitic and heat-treated martensitic steels, by transforming any retained austenite crystalline structure into harder martensite, increasing the precipitation of eta-carbides, and promoting stress relief.

“We are thrilled to bring this process in-house,” said Brooke Afshari, President.  “We already manufacture all major components in our facility, and by bringing in certain outside processes, it gives us another way to control quality and lead times.”  

Blackout Defense will utilize this process on suitable metals that will most benefit from the effects of cryogenic hardening.  With respect to rifle barrels, Blackout Defense will offer cryogenic treatment as another option alongside black nitride finish.

The Blackout Defense team has a strong history in mission critical worlds such as aerospace dating back over 15 years. They use their expertise from outside industries to elevate firearms innovation, development, and manufacturing techniques. They hold several patents and patent-pendings on many of their products including barrel systems, receivers, and drop-in triggers. Based in Chandler, Arizona, Blackout Defense operates out of their state-of-the-art facility where they design and manufacture all of their products in-house. Learn more at