Gas Capsule Seal for Crossman CO₂ Guns
Replace worn seals and stop annoying hissing leaks with this reliable gas capsule seal designed for use with compatible Crossman CO₂ pistols and rifles. A small maintenance part that makes a big difference to shot consistency and gas economy.
Why replace the seal
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Prevents leaks: Restores an airtight seal between the CO₂ cartridge and the gun’s valve to avoid wasted gas and inconsistent shots.
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Restores performance: A fresh seal helps maintain consistent pressure for reliable velocity across the life of a cartridge.
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Cost-effective maintenance: Easy, affordable replacement that avoids more expensive repairs or component replacements.
Key features
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Application: Replacement seal for use with compatible Crossman CO₂ cartridge fittings
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Material: Durable rubber/urethane compound designed for low-temperature and high-pressure use
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Installation: Simple swap-out — remove the old seal, clean the seating surface and fit the new seal
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Use case: Ideal for shooters experiencing hissing leaks, loss of charge or reduced shot consistency
Installation & tips
- Ensure the gun is unloaded and no CO₂ cartridge is fitted before starting.
- Remove the old seal and clean the seating area of debris or lubricant residue.
- Lightly lubricate the new seal with a silicone-based gun lubricant if recommended by the manufacturer.
- Fit the new seal evenly and reinsert the CO₂ cartridge; check for leaks before use.
Compatibility & safety notes
- Check fitment against your specific Crossman model — not all models use the same seal size or design.
- Replace any seal that appears cracked, flattened or hardened to avoid performance issues.
- Store spare seals in a cool, dry place away from solvents and direct sunlight.
Keep your CO₂ gun working reliably. Add this Gas Capsule Seal for Crossman CO₂ Guns to your maintenance kit and enjoy leak-free, consistent shooting every time.