Crosman 12 CO2 Gram Cartridges - Parent Go to amazon.com Related posts Top 16 best co2 gun: Which is the best one in 2022? Top recommendation for co2 pistol FeatureCO2 ACCESSORIES DescriptionCrosman Powerlet 12-gram CO2 cartridges provide a snug fit and solid seal for reliable, consistent performance with almost any gas-powered gun. 25 per package.