Registered User
These are the sizes you'll need
Valve seal 6.0 x 2 xxxx OPN 2490021
Bolt 4.0 x 1 OPN 2472309
Barrel seals 9.0 x 1.5 OPN 2472295
Cylinder Seal 14.0 x 3 xxxx OPN 2459817
Cylinder fitting 15.0 x 2 OPN 2476266
OPN = Original part number
xxxx = These must be Polyurethane as in constant CO2 contact
Steyr LP10, Steyr LP5,
Vintage Collection - Walther LP53, HW77k Venom, BSF S20 Match, Original 35, ASI Target plus lots more
Registered User
Many Thanks for the information. I have a couple of cylinders i need to reseal. at the moment I am using my good CP2 cylinders on all the CP series pistols they fit on.Originally Posted by nige346
I looked at the seal force website and they didn't seem to do any polyurethane o rings at least not on there eb-y store
FWB P8X,Hammerli AP40, Steyr LP1 Walther LPM-1, CPM-1, CP1, CP2, LP3, LP53, LP300, LP400, Terrus, Pardini P10, FX Wildcat .177, HW100 .22, AA S410 .22, BSA R10 MK2 .177, , HW77, 80, 90 BB AK47, S&W 586 and more blow back Co2 BBs than you can shake a stick at
If the CO2 is in a liquid state it will need some head space to evaporate into to provde gas pressure. If you're over full then the head space will be insufficient for enough evaporation to take place between shots.
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