Originally Posted by Vitalsilence428
So I m a machinist and I notice that the g3 bolt is pretty heavy compared to the g4. I would imagine that this is in part because the g4 is machined further down the bolt so there is less material. Would it make since to machine the extra material out from the inside of the bolt to make it lighter, lower my dwell, and get a little less kick. Has anyone done this or thought of this?
Originally Posted by GraniteGargoyle
Would that make it too big to properly seal on the stem?
This ^^^ .
The inner diameter of the bolts in stock form are necessary for sealing of the backcap stem o-ring and keeping all that air in the back end of the marker ready to dump out through the bolt when the bolt moves far enough off that backcap stem.
As far as weight differences, my guess is that the G3 bolts may be thicker in order to have enough material to construct the o-ring grooves. Since the G4 bolt is o-ringless, that bolt can be as thin as possible as long as is it kept strong enough so it doesn't collapse on itself.
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