ASA Tuning HEAT CORE Chamber – up to 150 J for Umarex T4E TC 68 7.5 J, 16 J and 40 J

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The ASA Tuning HEAT CORE Chamber is an enlarged air chamber with an integrated pressure gauge designed for the Umarex T4E TC 68 in 7.5 J, 16 J and 40 J versions. It increases the available air volume and, depending on the complete setup, can provide a declared output of up to 150 J.

  • compatible with the 7.5 J, 16 J and 40 J versions of the TC 68,
  • enlarged air chamber,
  • integrated gauge for monitoring system pressure,
  • CNC-machined 7075 aluminium with a black anodised finish,
  • the supplied spring is intended for the 7.5 J version,
  • the original gun spring remains in place on the 16 J and 40 J versions.

The manufacturer states a possible output of up to 150 J. Actual output depends on the gun version, air source and pressure, ammunition, settings and other components in the setup.

Availability In stock
Delivery to:
29.09.2026
Delivery options
Code: 0344H
163,70 € 135,29 € excl. VAT Measure price:
ASA Tuning HEAT CORE Chamber – up to 150 J for Umarex T4E TC 68 7.5 J, 16 J and 40 J
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ASA Tuning HEAT CORE Chamber s manometrem pro Umarex T4E TC 68
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ASA Tuning HEAT CORE Chamber for Umarex T4E TC 68

The HEAT CORE Chamber is a replacement valve body with an enlarged air chamber for the Umarex T4E TC 68. Its increased internal volume changes the gun's performance characteristics, while the integrated pressure gauge provides a clear reading of system pressure.

Compatibility and spring use

The chamber is compatible with the Umarex T4E TC 68 in 7.5 J, 16 J and 40 J versions. The spring arrangement depends on the original version of the gun:

  • TC 68 7.5 J: use the spring supplied in the package.
  • TC 68 16 J and 40 J: retain the gun's original spring; replacement is not required.

Main features

  • enlarged air chamber providing a greater available air volume,
  • integrated gauge for monitoring system pressure,
  • CNC-machined construction,
  • 7075 aluminium,
  • black anodised finish.

Technical specifications

Designed for Umarex T4E TC 68
Compatible versions 7.5 J, 16 J and 40 J
Declared output up to 150 J depending on the setup
Material 7075 aluminium
Manufacturing process CNC machining
Finish black anodised
Pressure monitoring integrated pressure gauge

Output notice: The manufacturer declares a maximum of up to 150 J. Actual output depends on the gun version, air source and pressure, ammunition, temperature, settings and the complete configuration. Not every gun will automatically achieve this value.

Package contents

  • 1× ASA Tuning HEAT CORE Chamber,
  • 4× M6 screws,
  • 1× spring for the TC 68 7.5 J version.

Safety notice

Installing a tuning component may significantly change the gun's output. Installation should be carried out by someone experienced in servicing pressurised systems. Before installation, unload the gun, disconnect the gas source and ensure that the system is not pressurised. After installation, check its operation, sealing and output with a chronograph. Observe the laws and regulations of the country in which the product will be used.

Frequently asked questions

Is the chamber suitable for all TC 68 power versions?

Yes. It is intended for the 7.5 J, 16 J and 40 J versions. Only the spring arrangement differs.

Do I need to replace the spring on a 16 J or 40 J TC 68?

No. According to the manufacturer, the gun's original spring remains in place on these versions.

Is an output of 150 J guaranteed?

No. This is the declared maximum and can only be achieved with a suitable configuration. The resulting output must be checked with a chronograph.

Additional parameters

Category: T4E HTC/68
EAN: 4262405343281

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