The Byrna 8-Gram CO2 Cartridges with 1 Oiler are a high-quality accessory for air guns and slingshots. Made in the United States, these cartridges are designed for use with HD, SD, and EP models. The 10-pack of cartridges offers long-lasting power for outdoor sports enthusiasts, ensuring a consistent and reliable performance. With the trusted Byrna brand and innovative design, these CO2 cartridges are sure to enhance your shooting experience.
There is a worldwide shortage of these 8 G canisters. So substitutes are being used. So far, they perform well. I don't there is lubricant in these as with the genuine item. So your gun will not be lubricated. One out of 10 should have lubricant in it. I think these are the ones used to carbonate drinks. Not sure. So they should not have any contaminants in it.