SilencerCo 1/2-28 piston built from 17-4 stainless steel for use with Omega K, Hybrid 46, Osprey, and Octane suppressors. Easily swapped between host firearms and calibers.
The SilencerCo AC1756 piston is a precision-engineered component designed for shooters who demand reliability and flexibility from their suppressor systems.
Material: 17-4 stainless steel, heat-treated for maximum durability and longevity. This material choice ensures the piston withstands repeated cycling and environmental exposure without degradation.
The piston functions as part of the Nielsen device—a mechanical system that cycles during firing and unlocks the pistol barrel for semi-automatic operation. This design allows your suppressor to work seamlessly with your firearm's action while maintaining sound suppression.
This 1/2-28 piston is compatible with the following SilencerCo suppressor series:
Whether you're running a compact carry gun or a full-size duty pistol, this piston gives you the flexibility to adapt your suppressor system to your needs.