Power Increase 11 J to 20–30 J | Umarex T4E HDR/TR 50 GEN1 | Powerkit.50 V2

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The Powerkit.50 V2 is a stainless steel upgrade kit that boosts the output of the Umarex T4E HDR / TR 50 GEN1 revolver from 11 J to 20–30 J. The kit includes a valve pin with an enlarged bore (2.5 mm) and an enlarged valve hole (1 mm) for optimized CO₂ flow and longer valve opening time.

  • Output: Boost from 11 J to 20–30 J (temperature dependent).
  • Material: Stainless steel.
  • Compatibility: Only for Umarex T4E HDR / TR 50 GEN1.
  • Reversible installation.
Availability In stock
Delivery to:
01.05.2026
Delivery options
Code: 0021H
52,01 € 42,98 € excl. VAT
Power Increase 11 J to 20–30 J | Umarex T4E HDR/TR 50 GEN1 | Powerkit.50 V2
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Powerkit.50 V2 – Professional Upgrade for Umarex T4E HDR / TR 50 GEN1

The Powerkit.50 V2 is a precision technical upgrade designed specifically to increase the muzzle energy of the first-generation Umarex T4E HDR / TR 50 revolver. This stainless steel kit transforms your weapon from the original 11 J to a dynamic 20–30 Joules. The main goal of this kit is to maximize CO2 expansion and ensure stable, high performance, which is crucial for effective Home Defense.

The key to high performance is the complete optimization of the propellant flow. The valve pin features a 2.5 mm hexagonal opening, which, combined with a valve hole expanded to 1 mm, allows much more gas to be released with each shot. Additionally, the use of stainless steel ensures better component sliding, extending the life of the sealing rings and reducing the cooldown effect, which is a common problem with standard valves.

Technical Parameters:

  • Compatibility: Umarex T4E HDR / TR 50 first generation only (GEN1)
  • Achievable Power: 20–30 J (depends on ambient temperature and cartridge type)
  • Material: High-grade stainless steel
  • Pin hole diameter: 2.5 mm (hex)
  • Package contents: Pressure chamber insert, valve pin, 2.5 mm hex key

Key Advantages:

  • Extreme muzzle energy increase for maximum stopping power
  • Precision CNC machining from stainless steel for long life
  • Extended valve opening time for more efficient gas utilization
  • Easy and fully reversible installation without permanent weapon modifications
  • Reduced mechanism cooldown during rapid fire

Frequently Asked Questions (FAQ):

1. Can this kit be installed in the GEN2 version?
No, this Powerkit is designed exclusively for first-generation (GEN1) models. It is not compatible with the newer GEN2 version due to a different internal mechanism design.

2. How does temperature affect the kit's performance?
The 20–30 J output is closely linked to the CO2 cartridge temperature. For maximum values, we recommend storing cartridges at room temperature. In cold environments, a slight pressure drop may occur.

3. Do I need to replace other parts during installation?
Installation is designed as a direct replacement. The package includes everything you need, including the hex key. No further weapon modifications are necessary for basic operation.

Notice: Installing this kit involves a technical modification of the weapon, which leads to a loss of warranty. Always comply with the laws in your country regarding power limits for weapons.

Additional parameters

Category: T4E HDR.50 / TR.50
EAN: 4240001931313

POWERKIT FOR HDR.50

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