FX Impact Power Block Upgrade Kit M3

Better Airflow. More Power. Built for Heavy Slugs.

The FX Impact Power Block Upgrade Kit for the M3 is a purpose-built internal upgrade that transforms the rear block of your FX Impact MK3 into a high-flow power platform. Like a ported and polished intake manifold on a performance engine, the Power Block improves airflow efficiency and power transfer through the valve house — unlocking higher velocities and greater power potential, especially when shooting heavy slugs.

⚠️ This kit converts MK3 to MK3 Power Block configuration only.

Overview

The FX Power Block addresses one of the key limiting factors in high-power airgun tuning — the valve house airflow. The upgraded rear block design allows better air flow and efficiency through the valve system, giving shooters who are pushing their Impact M3 for maximum power with heavy slugs the platform they need to achieve higher speeds and output. Works best in conjunction with other power upgrades for shooters building a high-performance slug-shooting setup.

Key Features

• Upgraded valve house for improved airflow, efficiency, and power potential
• Purpose-built for high-power applications — especially heavy slug shooting
• Allows higher velocities and increased power output over the standard M3 block
• Designed specifically for FX Impact MK3 to MK3 Power Block conversion
• Best results achieved at higher power settings with heavy slugs
  
  

Performance Advantage

• Improved valve house airflow reduces restriction for more efficient air delivery per shot
• Higher power potential unlocked for shooters pushing maximum velocity with heavy slugs
• Works like a ported and polished intake — same air, more efficiently delivered
• Ideal complement to power plenum and slug power kit upgrades for a complete high-performance Impact M3 build
  
  

Compatibility

• FX Impact MK3