SIG SAUER SRD Replacement Piston 9mm 1/2"-28 Stainless Steel

This replacement piston is a spare part for Sig Sauer SRD suppressors, designed to convert the suppressor for use with 9mm Luger ammunition. It is intended for owners who need a 9mm configuration or who want to match the suppressor to a 1/2-28 barrel thread pattern.

The piston is machined from 17-4 stainless steel, a heat-treated alloy, and carries a matte bead-blasted finish. It is listed with a 1/2-28 thread pitch. To install it, remove the existing piston from the SRD suppressor and swap in this piece so the suppressor matches the barrel's thread pattern.

The piston is listed for SRD suppressors, specifically the SRD9 conversion setup. The retailer text notes it can also convert an SRD45 to 9mm and that the same design is offered in M13.5x1 LH thread pattern as a separate option.

• Caliber: 9mm Luger
• Fits: Sig Sauer SRD suppressors (SRD9 conversion)
• Material: 17-4 Stainless Steel
• Finish: Matte
• Thread Pitch: 1/2-28
• Brand: Sig Sauer
• Model: SRD