Huma Air FX Wildcat Power Plenum XL Set + Tuning Regulator

30cc More Air. Maximum Power. Perfect Consistency.

The Huma-Air FX Wildcat Power Plenum XL Set with Tuning Regulator is the ultimate performance upgrade for FX Wildcat MKI and MKII owners who want to unlock maximum power, eliminate velocity fluctuations, and build the perfect foundation for a full power tune. Replacing the original regulator and adding 30cc of regulated air volume, this set delivers consistent pellet speed across the full working pressure range — and opens the door to further tuning that simply wasn't possible with the factory setup.

⚠️ Not compatible with the FX Wildcat MKIII. Utah Airguns installation currently available on new gun sales only.

Overview

The Power Plenum XL Set installs directly into the Wildcat's pressure tube in minutes, replacing the original regulator with Huma-Air's precision adjustable unit and adding a massive 30cc regulated air chamber. The increased air volume gives the valve more consistent, regulated air to work with on every shot — eliminating the velocity fluctuations that limit accuracy and allowing your rifle to operate efficiently at a lower regulator pressure. The result is a platform that shoots more consistently, more powerfully, and with a far better foundation for additional tuning.

Key Features

• Replaces factory FX Wildcat regulator with Huma-Air precision tuning regulator
• Adds 30cc of regulated air volume via integrated Power Plenum XL chamber
• Stepless pressure adjustment from 100–170 bar via external pressure scale
• Bar pressure scale on regulator for precise fine-tuning and re-adjustment
• Eliminates pellet speed fluctuations for consistent velocity across the full pressure range
• Allows lower regulator pressure operation due to improved efficiency
• Installs directly into pressure tube in minutes
• Provides an excellent foundation for further rifle tuning
• Fitting instructions included as PDF download
  
  

Performance Advantage

• 30cc regulated air chamber dramatically increases available regulated air volume for maximum power potential
• Consistent regulated pressure eliminates shot-to-shot velocity variations for tighter groups and more predictable trajectories
• Lower operating regulator pressure improves efficiency and extends shot count per fill
• Stepless 100–170 bar adjustment range covers a broad spectrum of tuning configurations
• Huma-Air regulator precision ensures consistent output pressure across the entire working pressure range of the tube
• Builds the ideal platform for further hammer spring, transfer port, and valve tuning
  
  

Compatibility

• FX Wildcat MKI
• FX Wildcat MKII

⚠️ Not compatible with the FX Wildcat MKIII.

What's Included

• Huma-Air Adjustable Tuning Regulator
• Power Plenum XL (30cc regulated air chamber)
• Pressure scale in Bar for fine-tuning and re-adjustment
• Fitting instructions (PDF download)