Make cleaning and maintaining your CO2 gun a breeze. The new lubrication cartridges from ASG can be used in all CO2 powered Airguns and Airsoftguns that are using a 12 g CO2 cartridge. In addition to the CO2 gas, the cartridges are also filled with 0.8 g of silicon oil that cleans and lubricates the valve while shooting, and at the same time provides all moving parts of the gun with a layer of oil that lowers friction and wear, resulting in smooth action, consistent accuracy and increased lifespan of all parts. Some added benefits of the lubrication cartridges are an improved performance. When in use they offer a slight increase in muzzle velocity, but more importantly a more consistent muzzle velocity, resulting in improved accuracy. The enhanced performance is also evident when used in colder weather, where they continue to deliver a consistent reliable performance, even under conditions when regular cartridges causes the gun to freeze up. It is recommended to use a lubrication cartridges every tenth time you replace the CO2 cartridge, for cleaning and maintenance. But the cartridges can be used all the time should the need arise.