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FX Impact STX Slug Tensioned Barrel Kit

Rigidity. Accuracy. Built for Slugs.

The Tensioned Barrel System is engineered for shooters pushing the limits of slug performance. Designed to handle heavier projectiles and higher velocities, it delivers the rigidity and consistency needed for precision shooting at distance.

Overview

As slug shooting evolves, increased energy and velocity demand a more stable platform. This system uses a tensioned design to reduce barrel movement and harmonics, resulting in improved accuracy and repeatability—especially with heavy slugs.

Developed through global collaboration, it represents a refined approach to maximizing performance from modern platforms.


Key Features

  • Tensioned barrel design
    • Increased rigidity for improved accuracy
  • Reduced barrel harmonics
    • More consistent shot-to-shot performance
  • Optimized for slug shooting
    • Handles heavier slugs at higher velocities
  • Improved stability
    • Better temperature consistency and retained zero
  • Moderator compatible
  • Standard 1/2" UNF threading
    • (M18x1 for .35 caliber)

800mm Extended Option

  • Increased barrel length for higher velocity
  • Improved ballistic performance and BC
  • Designed for long-range shooting applications

Installation Notes

  • Tighten tension nut until flush with carbon fiber housing
  • Add an additional ¼ turn
  • Do not overtighten

Performance Notes

  • Optimized for slug use
  • Not required for standard pellet shooting
    • (.35 caliber benefits regardless)
  • High-performance setups may require supporting upgrades

Compatibility

  • Compatible with moderators
  • .35 caliber (700mm & 800mm) requires new Power Block
  • Not compatible with older .35 caliber Impact models
 
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