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FEG GPM-01 Air Pistol (CO2)

August 20 2008 at 5:59 PM
  (Login victore1965)

Need help regarding a CO2 leak in one of the cylinder the cylinder is leaking by the seal and the steel ball bearing.

Any advide or direction will be appreciate.


Victor E.

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(Login vonBrink)

Tim at MAC-1 can fix them. nt

August 21 2008, 2:40 PM 


Willing victim of unrepentant airgun enablers.

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(Login bobbyallred)

Daisy 91/FEG GPm01/02 Knock Valve Repair

August 30 2008, 10:01 PM 

You can repair the knock valve washer seal in 10 minutes. . You need a Hillman nylon #6 washer from Lowes, 4 for $1.09 and some model glue.

Disassemble the knock valve and remove the old washer, take a new washer and with a toothpick place a thin film of model glue on both sides of the washer , reassemble and charge.

Model glue temporarly softens the hard nylon washer so it will conform and seal/proof itself to the brass surface ,and allows the knock valve ball to shape the washer to the curved surface .

I did my repair in 2001 and its still works great, Ive repaired a friends and an aquaitence on the internet, their repair has held up also.

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