480cc Carbon Fiber bottle for a Kral puncher pro 500

[perazzisc3]

The 500cc aluminum tank is very heavy and I would like to replace it with a 480cc carbon fiber bottle. 

Anyone here know if the threads on the Kral valve assembly is standard and will be compatible with carbon fiber bottles that are available?

 

[Long_Gun_Dallas]

Should be 18x1.5mm for both