For 12 gram co2 cartridge bb gun, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 12 gram co2 cartridge bb gun has been well received by many customers and enjoyed a good reputation in many countries. fairdale metal tools co.,ltd 12 gram co2 cartridge bb gun have characteristic design & practical performance & competitive price, for more information on the 12 gram co2 cartridge bb gun, please feel free to contact us.