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Old June 11th, 2009, 11:27   #3
Skladfin
 
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Join Date: Dec 2006
Location: Glace Bay, Nova Scotia
That is the carbon build up from trigger corrosion. It happens in all guns, V2, V3 alike. No matter what new trigger contacts you purchase, it will have that over time.

The only way to eliminate the build up is to install a MOSFET.

Hope that helps
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