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

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Brand: HOMEDEFENCE-24

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:	30.01.2026
Delivery options
Code:	0021H

52,19 € 43,13 € excl. VAT

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

Not rated

Brand: HOMEDEFENCE-24

POWERKIT.50 V2. pro revolvery Umarex T4EHDR/TR.50.

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Powerkit.50 V2: Maximum Output of 20-30 Joules for Umarex T4E HDR / TR 50 GEN1

The Powerkit.50 V2 is a precision upgrade designed to increase the muzzle energy of the Umarex T4E HDR / TR 50 first generation revolver from the original 11 J to a dynamic 20–30 Joules. This stainless steel kit improves performance through several key modifications:

Optimized CO₂ Flow: The valve pin is equipped with a 2.5 mm hexagonal bore, which allows for much greater CO₂ expansion. The valve hole is also enlarged to 1 mm.
Stability and Protection: The stainless steel material ensures better sliding and prolongs the life of the sealing ring.
Longer Opening Time: A longer valve opening time releases a larger amount of gas, achieving higher output and reducing the "cooldown" effect.

It is recommended to store CO₂ cartridges at room temperature for optimal expansion and pressure. The installation is easy and reversible.

Technical Parameters

Output: From 11 J to 20–30 J (more than 25 J, temperature dependent)
Material: Stainless steel
Compatibility: Umarex T4E HDR / TR 50 GEN1 revolver (GEN1 only, not suitable for GEN2)
Package Contents: 1x Valve (pressure chamber insert), 1x Valve Pin, 1x Allen Key 2.5 mm

Safety Warning:

CAUTION: Once a technical modification is made to the weapon, the warranty and certifications (e.g., CÚZZS) are voided. Homedefence-24, UMAREX GmbH & Co. KG, and rprshop assume no responsibility for the consequences of installation and use.

Additional parameters