is this common? (KSC G26 question)
 

here's a newb question for you guys..... I'm currently using propane on my metal G26 and find that I can only get off 5-6 rounds before the gas runs out. Is that normal? how can I fix that. And, I have a mag from a G17 which is leaking, am I better off buying a new one or try and fix/seal the leak area?

That is deffinately not normal. I get approximately 3 full clips (60 shots) off one mag of propane. I do not, however, have a metal slide installed. I would buy a new magazine it I were you, but ask around to see if there is some sort of way to fix a leaking mag.