Chamber

The chamber or reservoir is the power source of a spudgun. It is, along with the barrel, the only component found in all launchers. In combustion cannons, the chamber contains the flammable fuel/air mixture, and in pneumatic cannons it contains the compressed gas. The chamber is connected to the barrel either directly or through a valve, to propel the projectile when the energy is released. The chamber is often the part of the launcher that is subjected to the highest stress, and it's important that it is well constructed. It is also the part where the most accessories are connected, especially combustion launchers; they can have a multiple holes to accommodate spark gaps, chamber fans, fuel meters and for venting.

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