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JK Armament JK155 Piston .578×28 Stainless Steel .45 Cal

JK Armament JK155 Piston .578×28 Stainless Steel .45 Cal

Original price was: $23.94.Current price is: $17.49.

SKU: NHZKV180783 Category:

Description

The JK Armament JK155 piston is a precision-machined booster piston intended for .45-caliber pistols using a .578×28 thread pattern. Machined from 17-4 PH stainless steel, this component screws onto the threaded pistol barrel to provide the threaded interface used to mate a suppressor to the pistol. The JK155 is intended for pistols chambered in .45 ACP and other pistols that share the .578×28 threaded barrel specification.

Key Specifications

  • The thread pattern is .578×28, matching common .45-caliber pistol barrels.
  • The material is 17-4 PH stainless steel for strength and corrosion resistance.
  • Compatible with .45 ACP pistols and other pistols that use .578×28 threads.
  • The model designation is JK155 piston from JK Armament.
  • Functionally designed to screw onto a threaded pistol barrel to provide a suppressor mounting interface.
  • The finished surface is stainless steel (machined) consistent with the 17-4 PH material.

Built to tight tolerances, the JK155 piston provides a reliable threaded interface for attaching a suppressor to compatible .45-caliber pistols. Its 17-4 PH stainless construction offers durable thread life and corrosion resistance while maintaining precise alignment between suppressor and barrel. For users running a suppressor on pistols with .578×28 threads, the JK155 delivers the straightforward, robust performance expected of a purpose-built piston component.

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