Yankee Hill Machine Nielsen Piston 9mm 1/2×28

Description

The Yankee Hill Machine (YHM) Nielsen piston is a dedicated suppressor piston designed for use with compatible pistol suppressors and YHM’s booster housing YHM-2055. It is built from heat-treated 17-4 stainless steel for corrosion resistance and durability, and provides a 10-position adjustment system to help minimize impact shift. This specific configuration fits 9mm applications and uses a 1/2×28 thread pattern.

Key Specifications

• Constructed from 17-4 stainless steel (heat treated) for durability and corrosion resistance.
• Designed for 9mm caliber applications.
• Features 10 adjustment points to help zero any impact shift.
• Thread pattern is 1/2×28 to fit compatible pistons and suppressors.
• The unit weighs approximately 1.4 oz.
• Finish is stainless for a consistent appearance and corrosion resistance.
• Model designation: Nielsen.
• Product type: Piston for booster/attachment use.
• Listed compatibility includes YHM booster housing YHM-2055 and many popular pistol suppressors.
• Additional noted feature: 9mm piston for R9 & N2O (per source data).

This Nielsen piston offers a robust, adjustable solution for 9mm suppressor setups where a durable, heat-treated stainless component is required. Its 10-point adjustment and proven stainless construction make it suitable for shooters seeking a reliable booster piston for compatible pistol suppressors and YHM booster housings.