Thanks for the info Shane-O!
I can confirm the Epoxied feed tube, I had to re-epoxy it myself since it came off at one point. I am bound and determined to make this thing run on 12 grams. My course of action is going to be to get a Palmers HP LT valve or maybe a sniper I valve from baccipaintball and a spring kit.
FYI I also know of one other one just like this in this same color. Last I knew of it it belonged to Billy6977 if you know him.