ChrisG Posted October 28, 2019 Posted October 28, 2019 Running cyma 701. AA hopup, crazy jet barrel, autobot bucking. Good airseal throughout. FPS is a bit sporadic at the moment varying by 40~ each shot. Any suggestions?
Skara Posted November 1, 2019 Posted November 1, 2019 Either the spring is crap or the air seal isn't as good as you may think.
MadMole Posted November 6, 2019 Posted November 6, 2019 PTFE wrap on the Hop rubber to seal it to barrel
Steveocee Posted November 26, 2019 Posted November 26, 2019 No mention of the piston or anything that has gone on back there. PTFE taped the cylinder head? Correctly lubed the piston O-rings? Cylinder head meeting and sealing into the bucking well? Hopup bucking PTFE'd onto barrel? Using good and consistent ammo? Lots of things can cause what you are getting, the most obvious are a bad air seal or bad ammo.
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