Sig Sauer

Convert your SRD9 or SRD45 suppressor thread pitch with this piston. It is compatible with a variety of hosts, and it is a perfect choice for converting your SRD45 to 9mm. Simply swap this conversion piston with the original piston in your suppressor to match your barrel thread pattern. It is made of 17-4 heat-treated stainless steel with a matte glass bead finish. This piston has a 1/2x28 RH tpi.