i was experiencing co2 leaking from the barrel, replacing the cup seal fixed it. While replacing the cup seal you should replace and lube your o-rings too.
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Buy 3 or 4 of these!
January 23, 2011
Reviewer:
Alcides Ramos
from Ceiba, Ceiba Puerto Rico
If you are experiencing leaking problems with your spyder marker and it is coming from the barrel its the cup seal.Remove it and replace it with a new one.