If your GHK G5, M4 or AK gas blowback rifle is too high an FPS for your site then you might want to try Socom Tactical nozzle mod for a way to drop it down a notch or two, or even crank it up.
This guide shows you how to do it, all details of what you need are in the video as well as a thorough guide on what to do. Enjoy!
For all your airsoft needs, please visit: www.socomtactical.net