Is your Barrel filling with at least *3 grams of CO2?Updated 2 years ago
Your CoolFire Trainer should fill with at least 3 grams of CO2. To find out if it is, follow the procedure in this video.
*The amount of CO2 per fill will vary with barrel length, barrel diameter, and use of capacity extenders (Rapid Fill Adapter/Extend-a-Shot).
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