Thanks for the information Marty. If I understand correctly, the "slide check" acts as a bleeder valve. It is attached to the end of the air line and connects to the female Foster quick connect which is at the end of the line and connects to the rifle. This sounds like what I need along with a tank and 1500 PSI regulator.If I can can't find or modify to a 1500 psi regulator, I'll try my local paintball shop like you suggested. I'm new to PCP's and know nothing of paintball stuff so the information from you and Bob has been very helpful.Thanks, Mike