Mine came very tight form the factory too. First I tried the PVC wrench method but the plastic teeth just kept snapping off from the torque. Then I got a Shoowrench from Shoo on here and it is awesome but still couldnt turn the wrench hard enough to pop the nut. Out of frustration I modded the wrench so I could use it with my compressed air impact wrench and that thing got it right off. Just be careful haha.

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Air Assault!