Yankee Hill Nielsen Piston .578×28 17-4 Stainless

The Yankee Hill Machine Nielsen piston is a replacement piston designed for use with compatible pistol suppressors and YHM booster housing YHM-2055. It is machined from heat-treated 17-4 stainless steel for corrosion resistance and long-term durability. The piston features indexed adjustment to correct for impact shift and improve repeatability.

Key Specifications

• The model is Nielsen.
• The thread pattern is .578×28.
• The material is 17-4 stainless steel.
• The finish is stainless steel.
• The product type is piston.
• The piston includes 10 adjustment points to zero any impact shift.
• The listed weight is 1.40 oz.
• Compatible with YHM booster housing YHM-2055 and many popular pistol suppressors.
• Not compatible with the original Sidewinder suppressors; will work with Sidewinder M2.
• The specified fit/thread is .578×28.

A straightforward, precision-machined piston built for consistency and durability. Its heat-treated 17-4 stainless construction and indexed adjustment system provide a reliable interface for compatible suppressor setups where repeatable performance and corrosion resistance matter.