Energetic Armament VOX S: Energetic Armament is disrupting the status quo again. The VOX silencer represents the next level of precision-engineered rifle silencers. The silencer core is CNC welded from C300 Maraging nickel-cobalt superalloy. Energetic Armament is the first silencer manufacturer to apply this ultra-strong alloy to a silencer. This aerospace alloy was developed and used by NASA to meet the extreme high-temp stress requirements of rocket motor casings with an incredible strength-to-weight ratio. Tensile yield strength is a measure of how much force a material can withstand before it begins to fail. Other manufacturers are stuck with 17-4 H1150 Stainless which has a yield of 100ksi or 6Al-4V titanium which has a yield of 120ksi. The C300 maraging steel used in the VOX is heat treated to achieve a yield of over 270ksi.