JK ARMAMENT | JK155PISTON578X28 | 45Cal Piston .578×28

The JK ARMAMENT JK155 piston is a precision-machined stainless-steel component that threads onto compatible pistol barrels to form the mechanical interface for a suppressor or muzzle device. Manufactured from 17-4 PH stainless steel for strength and corrosion resistance, the piston uses a .578×28 thread pitch. It is specified in the product name for 45Cal pistols and is intended for use where a threaded barrel interface is required.

Product Specifications

• The manufacturer is JK ARMAMENT.
• The part number/model is JK155PISTON578X28.
• The material is specified as 17-4 PH stainless steel.
• The thread pattern is .578×28.
• The caliber designation in the product name is 45Cal.
• The item is intended for pistol barrel attachment to mate a suppressor or muzzle device.
• The finish is stainless steel.
• The UPC is 850064482072.
• The product category is Class 3 Parts & Accessories.
• The product image is available at https://media.server.theshootingwarehouse.com/large/189133.jpg.

This piston provides a durable, precisely machined interface for threaded 45-caliber pistol barrels where a .578×28 thread is specified. Its 17-4 PH stainless construction emphasizes longevity and corrosion resistance in field and range environments. Choose this piston when you need a straightforward, serviceable threaded barrel adapter for suppressor or muzzle-device attachment applications such as suppressor-equipped range training or competition shooting setups.