Question about Grex 23 Gauge 1 3/8 Inch Length Headless Pinner

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The driver in my p635 will not retract after shooting

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Driver is either bent/burred or you have a pin double fed. Or does it make a hissing noise after you fire it?

If you need further help, I’m available over the phone at

Posted on Nov 04, 2010

  • scottm1000 Nov 05, 2010

    i took the gun apart and the driver seems ok. the gun does make a hissing noise from the exhaust port that is quieter than it should be.



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