I had the exact same problem, the prob is with the pgc slide. I tried it on the guarder frame and on the stock frame and the prob resides in that the bbu does not sit low enough in the slide. So since it's to high...there is a problem with the hammer and when you pull the trigger nothing happened until you press on the bottom right side of the slide, then it goes off ! There was alot of play with my pgc slide. I am sticking to the stock slide, I fo not have any prob with the stock slide with the nineball spring with rubber spacer. I am wondering actually what would be the best tight fit for a metal upgrade slide? I heard previously that is the pgc slide...but to my disapointment the tolerance are just awfull !
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