Yankee Hill Machine Sidewinder Piston 45ACP 16x1 LH – Booster Assembly for Tilting Barrel Pistols

The Yankee Hill Machine Sidewinder Piston is a Nielsen device (booster assembly) designed for use with the YHM Sidewinder suppressor on tilting barrel pistols chambered in .45 ACP. This piston allows the suppressor to move with the barrel during recoil cycling, ensuring reliable semi-automatic function. The 16x1 left-hand thread pitch is compatible with barrels threaded to this specification.

Machined from durable materials to handle the pressures and heat of suppressed fire, this piston is a direct replacement or alternative thread pitch option for shooters running the Sidewinder on different host firearms. Proper piston selection based on barrel thread pitch is critical for safe suppressor mounting and function.

• Type: Nielsen Device / Booster Piston
• Compatible Suppressor: YHM Sidewinder
• Caliber: .45 ACP
• Thread Pitch: 16x1 LH (Left-Hand)
• Material: Heat-treated steel
• Use: Ensures reliable cycling on tilting barrel pistols with threaded barrels