SilencerCo Piston M13.5×1 LH XL – Suppressor Piston (AC626)

• Piston enables semi automatic pistol cycling with suppressor systems installed
• M13.5x1 left hand thread pattern fits compatible handgun barrels
• Constructed from 17-4 stainless steel for durability and strength
• Heat treated design improves wear resistance and service life
• XL size configuration supports specific suppressor applications
• Designed for use within Nielsen device equipped suppressor assemblies

The SilencerCo Piston M13.5×1 LH AC626 is a suppressor piston designed for enabling proper cycling in semi-automatic pistol platforms.

The SilencerCo Piston M13.5×1 LH AC626 is constructed from 17-4 stainless steel and is heat treated for structural durability. This piston uses M13.5×1 left-hand threading and is part of the Nielsen device system that allows movement required for unlocking pistol barrels during firing cycles. It attaches to compatible SilencerCo suppressors using female threading and supports multiple host firearm configurations. The piston can be interchanged with other sizes for caliber or thread compatibility adjustments. In normal operation, this piston is used for handgun suppressor setups requiring recoil-assisted cycling. The SilencerCo piston system supports modular configuration across various suppressor models and threaded barrel standards.