Sig Sauer SRD Piston M13.5×1 LH — 9mm

Description

This Sig Sauer conversion piston adapts SRD-series suppressors to a 13.5x1mm left-hand thread pitch, enabling compatibility with appropriate 9mm hosts. It is designed as a simple replacement piston for SRD9 or SRD45 suppressors and allows conversion between those configurations when the host requires the M13.5×1 LH thread. The piston is manufactured from 17-4 heat treated stainless steel and finished with a matte glass bead surface for a discreet, durable appearance. Installation is performed by swapping the conversion piston with the original piston in the suppressor.

Key Specifications

• Thread pitch: M13.5×1 LH.
• Compatible suppressors: SRD9 and SRD45.
• Caliber compatibility: 9mm.
• Material: 17-4 heat treated stainless steel.
• Finish: matte glass bead.
• Installation method: swap of the conversion piston with the original piston.
• Host fitment: fits a variety of hosts.
• Listed weight: 0.1.

Built for straightforward installation and lasting service, this piston provides a practical solution for adapting SRD-series suppressors to M13.5×1 LH 9mm hosts. Its corrosion-resistant 17-4 stainless construction and understated finish make it a reliable component for users seeking a clean, mechanical conversion option.