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Tom West's Custom PC77 PumpMaster Classic Short Rifle



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So it's quiet simply just the barrel and bolt?

August 17 2012 at 9:24 AM

Derek Goins  (Login Stealth_Warrior)
Crosman Forum Member
from IP address 108.85.125.117


Response to I built a .20 Disco Carbine

Does the OD of the barrel need to close to the ID of the barrel or is that what the O-ring is for? As far as picking a O-ring size what's the general guide lines on fit and tolerances? Really appreciate the help guys...I can tell this is going to be a fun project. Always have a blast makin chips.

 
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