The T4E TC68 HPA Adapter Set converts a TC68 from CO₂ to compressed air operation using paintball/airsoft HPA bottles and regulators. It’s a simple, practical conversion: the kit gives you an ASA-threaded adapter that lets the TC68 accept the common ASA regulator fittings used on HPA bottles, plus a polymer shoulder rest that clips to bottles 49–52 mm in diameter for a neat, secure fit.

Running the TC68 from HPA can give more consistent pressure across temperature changes and more predictable shot-to-shot performance compared with CO₂ — but only when used with the correct regulator and within the specified pressure range.

Important safety notes: only use bottles fitted with an approved ASA regulator and thread (ASTM F1750-05 compliant). The adapter is designed for regulators set between 800–1200 PSI; using regulators set above or below that range may not work and can damage the gun. The gun and compressed air bottle are not included.

Includes

• 1 × ASA threaded adapter (converts M16×1.5 on the TC68 to ASA standard)

• 1 × Polymer shoulder rest (fits 49–52 mm diameter HPA bottles)

Specifications

• Thread conversion: M16×1.5 → ASA standard

• Compatible regulator pressure: 800–1200 PSI (use only within this range)

• Bottle diameter fit: 49–52 mm

• Standards: Use only HPA bottles/regulators compliant with ASTM F1750-05

• Notes: Gun and compressed air bottle not included. Using incorrect regulator pressures or non-compliant bottles may damage the firearm.

Compressed air bottle not included - Examples here:

ASG Ultra Air Tank & Regulator (850PSI output)
Air Venturi Tank & Regulator (1100PSI output)

Paintball Tank & Regulator (850PSI output)
HK Army Tank & Regulator (800PSI output)

(Check details for compatibility before ordering)

Please note use of HPA conversions may reduce lifespan and affect warranty - You take responability for converting your gun to HPA