CGS Suppressors Piston M13.5x1 LH Black Nitride 17-4 Stainless Steel - CGSKRK135X1LHBK

A quality suppressor piston is the backbone of a precision sound-suppression system, and the CGS Suppressors Piston M13.5x1 LH is built to handle the rigorous demands of serious shooters and hunters. This left-hand piston is machined from 17-4 stainless steel and finished in black nitride, a combination that balances durability against corrosion while maintaining the tight tolerances your suppressor needs to function reliably. Whether you're running a precision rifle or working with a left-handed platform, this piston threads at M13.5x1 and integrates into suppressor assemblies where repeatability and longevity matter.

The 17-4 stainless steel substrate is a go-to material in firearms engineering—it resists corrosion, handles thermal cycling without degrading, and maintains dimensional stability through repeated firing cycles. The black nitride surface treatment hardens the steel further and provides a clean, professional appearance. This piston is a direct component part, not a complete suppressor, and is intended for users who either assemble their own suppressor systems or need a replacement piston for an existing CGS suppressor platform.

If you're maintaining a suppressor, upgrading a piston assembly, or building a custom sound-reduction system, this CGS piston delivers the precision fit and material quality you'd expect from a recognized suppressor manufacturer. Verify that the M13.5x1 left-hand thread pitch and geometry match your specific application or suppressor model before purchase.

Key Features

• Left-hand M13.5x1 thread pitch for compatibility with specified suppressor platforms
• 17-4 stainless steel construction resists corrosion and maintains dimensional stability
• Black nitride finish for hardened surface and enhanced durability
• Precision-engineered component for suppressor assembly or replacement

Specifications

Frequently Asked Questions

Is this piston compatible with all CGS suppressors?

This piston is designed for CGS suppressor platforms that use the M13.5x1 left-hand thread pitch. Confirm your suppressor model accepts this thread specification before purchase.

What is the black nitride finish and why does it matter?

Black nitride is a surface hardening treatment that increases wear resistance and corrosion protection while giving the steel a professional matte-black appearance. It helps the piston withstand thermal cycling and repeated use without degradation.

Can I use this with a right-hand threaded suppressor?

No—this is a left-hand (LH) piston. It is not compatible with right-hand suppressor systems. Verify your suppressor's thread direction before ordering.

Is this a complete suppressor or just a component?

This is a piston component only, not a complete suppressor assembly. It is intended for users who maintain or assemble suppressor systems and need a replacement or spare piston.