Yankee Hill Machine Nielsen Piston Features The Yankee Hill Machine Nielsen Piston is constructed from hardened steel and heat-treated for long-term durability under repeated firing conditions. It interfaces with the suppressor's booster housing to allow proper recoil movement ensuring smooth cycling without negatively affecting accuracy. The precise machining helps maintain consistent alignment between the barrel and suppressor. Designed exclusively for the Sidewinder M2 series this piston provides a secure and reliable fit for compatible suppressors. Its robust construction supports dependable performance in demanding handgun applications. This piston is intended only for use with the Sidewinder M2 and is not compatible with the original Sidewinder suppressor. Yankee Hill Machine Nielsen Piston Specifications Manufacturer: Yankee Hill Machine Model: Nielsen Piston Type: Suppressor piston Caliber: 10mm Thread Pattern: 9/16x24 Material: Hardened steel Compatibility: Sidewinder M2 suppressors only Function: Enables reliable cycling for tilting-barrel pistols Not Compatible With: Original Sidewinder suppressor