Question about Crosman 1377 177 Single Shot Air Pistol

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Air pistol c02 replacement

I have an old (brand new) coleman air pistol (model 454)
I've tried to change the co2 cartridge it just looses all the compression. any ideas

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Well that takes me back! I have an old Daisy 1200 -- essentially the same pistol in a different brand.

My Daisy has a hand-turn screw to hold the CO2 cartridge in place, and you have to tighten it quickly until the leaking stops. It does this by pressing the cartridge up against a nylon washer to form a seal (and of course pushing it into the piercing pin to get the CO2 out!)

With age, I'd expect that nylon washer to get stiff or crack, making it harder to form a good seal. You don't need an exact replacement part, but if that's happened to yours then you will need to replace it with something more-or-less the same size as the original.

Posted on May 30, 2010

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