Need a disposable CO2 cartridge for your paintball marker?  We have them for your paintball pistol or your tactical paintball rifle.  Some of the larger disposable CO2 cartridges seen on this page will fit inside different buttstocks we also offer elsewhere on www.choicepaintballguns.com.  These will fit into the flexi-air buttstocks and you can buy refills for them on this page.  You can also get good deals on buying multiple 12g CO2 cartridges - these mostly fit into paintball pistols unless you have a remote adaptor.