Quote:
Originally Posted by SuperHog
I have a KJ P226 with exactly the same issues when it was new.
It was also sluggish after a few shots. After a few shots, the pressure drops as the gun start to chill from the propane.
The culprit was the piston. The o-ring in it was pure junk. It was hard rubber and undersized to the point the gas leaked out before the slide could fully blow back. As the gun chilled, and the pressure dropped, it appear sluggish but that was from insufficient energy to blow the slide back fully.
I fixed it with a new piston. Works flawless now.
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Which piston did you put into it? And what kind of performance are you getting out of it now ?