Tom West's Custom PC77 PumpMaster Classic Short Rifle
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Millions of cycles......
March 23 2012 at 9:43 AM
Crosman Forum Member
from IP address 184.108.40.206
If the commercial checkvalve claims re: O-ring life are any guide...
I can see that.. really, how much is it distending?
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Well, since an MSP checkvalve is more of a one-way leak...
- Steve in NC on Mar 23, 2012, 3:01 PM
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