Conversion piston for Sig Sauer SRD9/SRD45 suppressors to M13.5×1 left-hand thread. Made from 17-4 heat-treated stainless steel with a matte glass bead finish; installs by swapping into the original piston cavity.
This Sig Sauer piston converts SRD9 or SRD45 suppressors to a 13.5x1mm left-hand thread pitch. The piston is manufactured from 17-4 heat treated stainless steel and finished with a matte glass bead surface. It is designed to fit a variety of host barrels and to swap directly into the original piston cavity for quick conversion.
Product Specifications
The manufacturer is Sig Sauer.
The part reference is SRD-PISTON-M135X1LH as shown in the product data.
The piston is specified for 9mm in the provided product names and descriptions.
The thread pitch is M13.5×1 LH (left-hand).
The material is listed as 17-4 heat treated stainless steel.
The finish is a matte glass bead finish.
Intended to convert SRD9 or SRD45 suppressors to M13.5×1 LH thread pitch.
Installation is performed by swapping the conversion piston with the original piston in the suppressor.
The product is described as compatible with a variety of hosts (refer to host barrel specifications for fit).
The UPC is 798681525119.
The catalog category is Class 3 Parts & Accessories as provided in the data.
This conversion piston provides a direct and uncomplicated way to change the thread interface of compatible Sig Sauer SRD suppressors. Its corrosion-resistant 17-4 stainless construction and durable matte glass bead finish make it a practical choice for range and competitive applications where thread compatibility and reliable service are required.
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