Reply To: 5.7x 1.9 O ring for fx .22 breach seal

Forums PCP Airguns 5.7x 1.9 O ring for fx .22 breach seal Reply To: 5.7x 1.9 O ring for fx .22 breach seal

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Fitting a bigger o-ring in the same size seat will not result in an EVEN 5.02mm all around. This is hard rubber compound or polyurethane that can flex to an extent but contracting 0.7mm while retaining an even 5.02mm diameter is just not possible.

Anyways, hope it works out for you.