FX Integrated Harmonic Barrel Tuner

Dampen. Stiffen. Tune. Unprecedented Accuracy Control.

The FX Integrated Harmonic Barrel Tuner is a revolutionary shroud system designed exclusively for the FX Impact — delivering a level of precision barrel tuning control never before available on an airgun platform. Combining active harmonic dampening, barrel stiffening compatibility with the FX Carbon Fiber Liner Sleeve, and a precision rotating tuner weight, this system gives serious Impact shooters the tools to extract the absolute maximum accuracy potential from their rifle.

⚠️ Designed for the FX Impact only. Will not fit in the factory FX case with a 700mm barrel for safe shipping.

Overview

The FX Integrated Harmonic Barrel Tuner works on three levels to improve accuracy. First, the specially designed shroud dampens the barrel's harmonic signature — making it quieter, more subdued, and more controllable throughout the shot cycle. Second, when combined with the FX Carbon Fiber Liner Sleeve, the system stiffens the barrel to further lower harmonic amplitude and reduce barrel whip. Third — and most uniquely — the integrated rotating tuner weight at the end of the shroud allows micro-adjustment of barrel weight distribution. Even the smallest rotational adjustment of just a few thousandths of an inch can meaningfully change how the rifle groups at medium to long range distances.

Key Features

• Integrated shroud system dampens barrel harmonic signature for quieter, more controllable barrel behavior
• Compatible with FX Carbon Fiber Liner Sleeve for enhanced barrel stiffening
• Integrated rotating tuner weight for precision barrel weight distribution adjustment
• Tuner weight made from specifically selected metallic alloy for optimal mass and effect
• Micro-adjustment capability — even a few thousandths of an inch rotation changes group behavior
• Most impactful at medium to long range distances
• Single-variable tuning approach for systematic accuracy development
• Compatible with FX Impact M3 and M4 internal tuning system
  
  

Performance Advantage

• Harmonic dampening reduces barrel vibration for more consistent barrel behavior shot to shot
• Combined with the Carbon Fiber Liner Sleeve — lowers harmonic amplitude throughout the entire shot cycle
• Rotating tuner weight enables the most precise barrel tuning available on any production airgun
• Micro-adjustment sensitivity allows shooters to fine-tune group performance at extended distances
• Single-variable testing methodology makes tuning systematic and repeatable
• Dampening and tuning work together as a complete harmonic management system — not just individual improvements
  
  

Compatibility

• FX Impact M3
• FX Impact M4

⚠️ Designed for the FX Impact only.

⚠️ Will not fit in the factory FX case with a 700mm barrel installed — plan shipping and storage accordingly.