Check to make sure the piston head is in good shape and perfectly round, esp if it is plastic one. I just found that the p.head on a AK mechbox I was working on was "flattened" a little - lots of lost compression. Replaced with an Area1000 one and compression returned to perfect. I didn't really notice it until I took a real close look....
Last edited by Skruface; May 25th, 2008 at 16:26..
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