Quote:
Originally Posted by mzo
What Trooper said, get a NPAS.
My GBBR was shooting around and some times over 450 fps.
For $28.50 I had an airsoft gun doctor (most airsoft store should have one) order and install a NPAS on my GBBR.
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Depending on the gun you want/have, you might not even need anything but a paper clip and a small phillips screw driver to install one.