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-   -   2K2 WGP Pump blow back (http://www.mcarterbrown.com/forums/ask-experts/217558-2k2-wgp-pump-blow-back.html)

lzam6285 11-02-2012 01:17 PM

2K2 WGP Pump blow back
 
I have a 2K2 WGP Pump and when i shoot it the lid pops open on the hopper not all the time but some. I tried replacing the o'rings on the bolt and that helped a little but it still pops open. Any suggestions?

wd3d 11-02-2012 01:19 PM

Does the same happen if you are holding the pump forward as you fire?

lzam6285 11-02-2012 01:23 PM

No if i hold it forward it doesn't do it but is louder

rithunder916 11-02-2012 01:26 PM

Sounds like the bolt isn't closing all the way. Try a spring return on the pump.

lzam6285 11-02-2012 01:27 PM

ll try that thanks

Target 11-03-2012 10:46 PM

Be sure to chrony it while holding the pump forward for an accurate reading.

sounds like the bolt moves back when firing and air is directed up the feedneck.


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