SIG SAUER Pistol Silencer Piston 9mm 1/2X28 TPI

This piston fits a 1/2"X28 thread per inch 9mm pistol. Convert your SRD9 or SRD45 suppressor to a 1/2x28 Right Hand thread pitch with the SRD-PISTON-12X28. The piston is made of 17-4 heat treated stainless steel with a matte glass bead finish. The piston will fit a variety of hosts, and it is a perfect choice for converting your SRD45 to 9mm. Simply swap the conversion piston with the original piston in your suppressor to match your barrel thread pattern.