Reply To: .177 FX 400 Breech O-Ring Size?

Forums PCP Airguns .177 FX 400 Breech O-Ring Size? Reply To: .177 FX 400 Breech O-Ring Size?

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BigTinBoat
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According to FX parts diagram it's a 4.3 x 1.5 NBR70  (Part E1-4,5 on list)