Next Evolution of the RPX Series
JK Armament has introduced the JK 155 RPX 9K, the latest evolution of its RPX suppressor series, designed as a compact, booster-ready option optimized for 9mm pistols and pistol-caliber carbines. Built around adaptability and modularity, the RPX 9K is intended to deliver meaningful sound suppression while allowing users to tailor size, weight, and performance to their specific use case.
Modular Performance
The RPX 9K utilizes JK Armament’s advanced RPX rifle-pistol baffle geometry, engineered to balance sound reduction and pressure management across handgun and PCC platforms. This geometry allows the suppressor to function effectively on threaded pistols as well as popular PCC hosts such as the MPX, MP5, and Stribog.
A defining feature of the JK 155 RPX 9K is its modular baffle stack design, which gives users the ability to fine-tune the suppressor’s overall length and weight. By adjusting the number of baffles, shooters can configure the RPX 9K for maximum compactness or enhanced suppression, depending on their priorities.
What’s in the Box: JK 155 RPX 9K
Each JK 155 RPX 9K ships as a complete, booster-ready system designed for immediate use on 9mm pistols and PCC platforms.
Included Components:
JK 155 Booster Housing
Provides pistol compatibility and reliable cycling with a Nielsen device setup.
1/2×28 Piston
Standard thread pitch for most 9mm handgun barrels and PCC hosts.
JK 155 LT 2.5”
Tube Compact tube section forming the core structure of the suppressor.
JK 155 PRO Pistol Baffle (1x)
Primary baffle engineered for initial pressure and blast management.
JK 155 LT Pistol Baffles (5x)
Modular baffle stack allowing users to adjust length, weight, and suppression characteristics.
JK 155 LT High-Flow Flash Hider End Cap
Designed to reduce flash while maintaining efficient gas flow and pressure control.
Out of the box, the RPX 9K arrives as a fully configured, modular suppressor system—no extra purchases required to get started. Its component-based architecture gives shooters flexibility without forcing them into a fixed-length or single-use configuration.
Price & Availability
The JK 155 RPX 9K is available in Black and FDE and carries an MSRP of $795. For more information on the RPX 9K and JK Armament’s full suppressor lineup, visit JK Armament’s website.