JK ARMAMENT | JK155RPX9KFDE RPX 155 9mm 1.55in FDE

The JK Armament RPX 155 (JK155RPX9KFDE) is a compact suppressor engineered for 9mm platforms that require a shorter overall profile without sacrificing JK Armament’s baffle design. Its form factor is intended for use on 9mm handguns and pistol-caliber carbines (PCCs), and it ships with factory-installed components to support reliable function on boosted 9mm systems. The unit combines aluminum and titanium construction with a modular internal stack so users can tailor length and weight to their application.

Product Specifications

• The manufacturer is JK ARMAMENT.
• The model/part number is JK155RPX9KFDE.
• The product is marketed as the RPX 155.
• The compatible caliber is 9mm.
• The exterior diameter is 1.55 inches.
• The thread pattern is 1/2"x28.
• The finish is Flat Dark Earth.
• The primary materials are Aluminum/Titanium.
• The unit ships with a 1/2-28 piston/booster and high-flow flash hiding end cap installed.
• The baffle stack is a modular baffle stack that allows length and weight adjustments.
• The design incorporates advanced rifle-pistol baffle geometry for sound and pressure management.
• Intended platforms include 9mm pistols and pistol-caliber carbines (PCCs).
• The UPC is 850064482522.

The RPX 155 provides a durable, modular option for shooters who need a reduced suppressor profile while retaining adjustable internal configuration. Its included piston/booster and end cap arrangement simplify initial setup on boosted 9mm builds, and the aluminum/titanium construction balances durability with weight savings.