JK 155 Piston 1/2x28 9mm Suppressor Adapter

JK 155 Piston Assembly for 9mm Suppressors

The JK 155 piston is a precision-engineered component designed for shooters who demand reliable suppressor performance. This direct-thread piston assembly interfaces with 1/2x28 threaded barrels—the standard thread pitch for most 9mm pistols and carbines.

Key Features

• Thread Pitch: 1/2x28 (standard 9mm)
• Caliber: 9mm
• Material: Steel construction for durability
• Finish: Black
• Design: Piston-based operation for consistent cycling

What You Need to Know

Piston-driven suppressors offer several advantages over direct-thread designs. The piston assembly absorbs some of the recoil energy, reducing felt recoil and muzzle rise while protecting your suppressor from excessive wear. This design is particularly effective for 9mm applications, where reliability and ease of use matter.

The 1/2x28 thread pitch is universal across most modern 9mm firearms, making this piston a versatile choice whether you're suppressing a compact pistol or a 9mm carbine.

Installation

Simply thread the piston onto your 1/2x28 barrel. Ensure proper alignment and secure seating before use. Always verify compatibility with your specific suppressor model before installation.