Dead Air Silencers Thread Adapter FN 5.7 to 1/2-28 Black. With multiple adapter options available this accessory allows you to easily transition your silencer between different platforms for optimal performance. Specifications for Dead Air Silencers Thread Adapter: Manufacturer: Dead Air Silencers Color: Black Threads per Inch: 1/2x28 Condition: New Features of Dead Air Silencers Thread Adapter: Designed for use with the Dead Air Mask silencer Provides compatibility with various host firearms Expands functionality and adaptability Multiple thread adapter options available Ensures secure and reliable attachment Package Contents: Dead Air Silencers Thread Adapter What firearm models does the manufacturer say Dead Air Silencers Thread Adapter is compatible with? The manufacturer says that Dead Air Silencers Thread Adapter is compatible with Walther P22 SIG Sauer Mosquito 1911 FN Five-seveNDead Air Silencers DA422: Thread Adapter FN 5.7 to 1/2-28 Black