 Powerlet

A Powerlet cartridge, commonly referred to as a CO2 charger, is a small disposable metal gas cylinder holding of compressed CO2 and often a small quantity of lubricating oil, used as a pneumatic power source for certain air guns, airsoft guns, paintball guns, and for quick inflation of various devices, such as a personal flotation device.Originally developed and the trademark owned by Crosman Corporation and introduced to the market in 1954, the Powerlet cartridge has become the dominant source of power for inexpensive, rapid fire air guns from many manufacturers.