JK ARMAMENT | JK155HDM57828 | HD Direct Thread Mount | .578×28

The JK Armament HD Direct Thread Mount (JK155HDM57828) is a dedicated direct-thread interface designed to attach a suppressor to a barrel with .578×28 external threads. It uses a standardized suppressor-side HUB thread form so it pairs with JK 155 suppressors and many other compatible cans. The part is stainless steel with a Cerakote Black finish for corrosion resistance and consistent appearance.

Typical applications include range use where a suppressor is desired for noise reduction and precision shooting where a rigid, indexed mount is required. This mount is a firearm-side .578×28 threaded adapter and does not include a muzzle device unless otherwise specified.

Product Specifications

• The manufacturer is JK ARMAMENT.
• The model is listed as HD.
• The manufacturer part number is JK155HDM57828.
• The firearm-side thread fit is .578×28.
• The suppressor-side thread pitch is HUB 1.37524 TPI (1-3/8-24 TPI).
• The construction material is specified as stainless steel.
• The finish is Cerakote Black.
• The mount is compatible with JK 155 suppressors and numerous other manufacturers that use the same HUB interface.
• The product category is Class 3 Parts & Accessories.
• The UPC is 850017729636.
• The product image URL is https://media.server.theshootingwarehouse.com/large/189126.jpg.

This direct-thread mount provides a straightforward, durable interface for attaching compatible suppressors to barrels with .578×28 threads. Its stainless construction and Cerakote finish are intended to hold up under regular use while maintaining a subdued appearance. For users who require a simple, reliable mounting method for range work or precision shooting, this mount offers a practical solution without extra features.