I need measurements of piercing body seals ( i.d ,o.d.,etc) for crosman mk II CO2 pistol anybody got those
Crosman mk II CO2
- Thread starter Robert31415926
- Start date
They are O-rings in US sizes:
For the pierce pin seal, size 006 = .254 OD X .070 section
For the tube seal, size 013 = .755 OD X .103 section -- same one is used on many CO2 Crosmans:150/160/180/400 etc.
Some folks use urethane, but common Buna-N seems to work well.
Don R.
For the pierce pin seal, size 006 = .254 OD X .070 section
For the tube seal, size 013 = .755 OD X .103 section -- same one is used on many CO2 Crosmans:150/160/180/400 etc.
Some folks use urethane, but common Buna-N seems to work well.
Don R.
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some folks use Urethane because that is what the material should be but you can use anything you what
so, why Urethane, well it does not absorb CO2 whereas Buna will swell up and pop and spit as it degases the CO2 from the material when brought back to air
but as i said use what you what
so, why Urethane, well it does not absorb CO2 whereas Buna will swell up and pop and spit as it degases the CO2 from the material when brought back to air
but as i said use what you what
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Thanks for the info, found the seals, still don't have 2 clicks on cocking, tried trigger adj both extremes and power settings might be tearing it down and seeing what is up but damn it's fun to shoot thanks again
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