SilencerCo Piston M14.5x1 LH Black - AC27

This SilencerCo piston is designed for use with Osprey, Octane, and Omega suppressors, featuring 17-4 stainless steel construction with heat treatment for durability. The piston enables semi-automatic cycling on unlocked pistol barrels and is compatible with M&P, Sig, HK, and Walther threaded barrels. Compatible with both 40 S&W and other calibers using the M14.5x1mm LH thread pattern.