PCP Breech Seal (o-ring) database

If you are like me and just blew a breech seal you are likely searching high and low for it's size so you can order from a low priced o-ring source.

Please add any Breech o-ring sizes to this thread as a reference for others. Please state Gun , Caliber, O-Ring size. Most are 70 Durometer hardness.

Compatto .177 1.5X4mm
Compatto .22 1.5X5mm
Compatto .25 1.5X6mm

Bonus: Compatto fill probe, 1.5X4.5mm

Thanks
Thurmond