500 count box of 12 gram CO2 cartridges. Your get a heavy box weighing almost 42 lbs with 500 12 gram CO2 cartidges. Popular for pistols and other guns that accept these cartridges. Prefilled with CO2. We measured and these have 12 full grams of co2 inside! These are non-threaded.
*We can not ship these using air services. Your order will be changed to Ground shipping. Only USPS Parcel Ground or UPS Ground.