Posted 21 November 2011 - 07:56 PM
Posted 21 November 2011 - 08:02 PM
Posted 22 November 2011 - 10:40 AM
But on a serious note you can try short stroking the recoil spring guide to a degree that will lower FPS. But keep in mind that this may not only void warranty (if other problems arise from this mod) but your slide may not lock back when mag is empty.
Posted 22 November 2011 - 10:45 AM
It should significantly reduce FPS (around 50 FPS)
Here is a thread from someone that put it in their M9: http://kwausa.com/fo...h=1
and here's a thread where several aftermarket valves were test in the MP9: http://kwausa.com/fo...h=1
Posted 22 November 2011 - 09:02 PM
Posted 23 November 2011 - 02:51 AM
The easiest way to increase fps would be to change out the release valve on the mag to a high flow one. I changed mine to a high flow hurricane one you find in kwa proshop and it gave me a 20fps boost. The ATP was shooting at around 320 before and now I am at around 340-350 depending on temp.
There are a couple of other little tricks but can be time consuming and the results may not be worth the trouble.
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