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Carl Quick's LiteWieght 2240

So for about the last 24 months, I've had her on a serious diet. Now I am happy to report that she lost nearly 13 ounces and is feeling so much better. And let me say one thing, when I pick her up with one hand now she is light as a feather. Well, almost a feather.

Things I have done so far:

OEM main tube was lightened by me.
Barrel is OEM and trimmed down by me.
Main tube plug is made of Delrin by me.
Gas cap is aluminum, comes from HPA and bored out by me.
Hammer is made from Delrin by me with a modified 1701P striker.
Valve is an aluminum Disco rear end with a brass Pro-Top by Anthony.
Trigger grip frame is aluminum by Bluefork Design and then hogged out by Gregg.
Front barrel band is aluminum, made by Anthony, drilled by Rich and milled by me.

Quickster47



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Actually, Ron, if the checkvalve is efficient, there's not much difference at all...

November 21 2011 at 11:42 AM

Steve in NC  (Login pneuguy)
Troll, Banned User or Assorted Delinquent
from IP address 68.221.9.77


Response to Does Jame's pistol shown in the link...

...between accumulated pressure in the valve and peak pumping pressure - as little as 10 or 20psi in fact. That's hardly "huge." I would have said something more like: Chump change.

But the answer to your question is "valve." It's very useful, by the way, to be able to have the valve's exhaust external, where you can hear the "hiss" and so have immediate (audible) feedback as to when to stop pumping.

Meanwhile, if regulation on the pump side is the specific goal, here's another way to defrock the feline. Here the sudden increase in piston bounceback when the spring starts generating headspace is the feedback to the shooter's pumping arm.

[linked image]

Steve

 
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