The Yankee Hill Machine Nielsen Piston is a suppressor accessory for 9mm applications with a 1/2×28 thread pattern. It is constructed from heat-treated 17-4 stainless steel and is designed for use with the YHM-2055 booster housing.

Key Specifications

• The model is Nielsen for identified YHM suppressor accessory applications.
• The intended caliber is 9mm.
• The thread pattern is 1/2×28.
• The product type is a piston.
• The piston is made from heat-treated 17-4 stainless steel.
• The listed weight is 1.4 ounces.
• The design includes 10 adjustment points according to the supplied product description.
• The listed compatible booster housing is YHM-2055.
• The listed fit includes YHM R9 and N2O applications.
• The listed finish is stainless steel with a silver color.

With its 9mm compatibility, standard 1/2×28 thread pattern, and durable stainless steel construction, this Nielsen piston provides a practical configuration option for compatible suppressor setups.