Sig Sauer Replacement Pistons for Sig SRD Suppressors are a made of 17-4 heat treated stainless steel with a matte bead finish. The piston will fit a variety of hosts, and is a perfect choice for converting your SRD45 to 9mm. Simply swap the conversion piston with the original piston in your silencer to match your barrel thread pattern. Available in 1/2"-28 or M13.5X1 LH.
Specifications and Features:
- Cartridge: 9mm Luger
- Country of Origin: United States of America
- Finish: Matte
- Material: Stainless Steel
- Threads: 1/2"-28
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. www.P65Warnings.ca.gov