Which specific regulator are you talking about?"Eaglebeak"I have been using a product from Altaros air systems. It costs about 140 euro including postage. Its working range is between 80-210 bar. I have mine set at 170 and it works in the 165-175 range. If you want a higher working pressure, they may be able to build one to suit your needs. I have bought several products from this company and their service is highly regarded. The reg comes with hose and regulated pressure gauge and DIN type fitting which you will need if using a 300 bar bottle.
I have two for my AirForce(Gunpower) that work great.
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