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happy days, was the 3-4mm the O.D required for the roll pin sleeve ?

O.D ? if I'm gonna do it I might as well do it with a roll pin sleeve and do it once :thumbsup:

yup I've done the second stage mod and get a nice repeatable crisp 2lbs but i don't like the first stage at all it's not overly heavy or anything I just prefer a single stage trigger

In theory could you cut a slit in the air tube ? And just slip it over the pin instead of removing the pin.
Also what is the tube called ? What size it and where would one go about aquiring some ?