A paintball expansion chamber will help just about any paintball gun running on CO2. Most expansion chambers are in the form of a front grip and allow added surface area to help CO2 expand into a gas to power the marker. This generally makes the marker more efficient and consistent. An added benefit of using the chamber as a front grip is that the heat from your hand will help the conversion. Not all paintball guns can accept a standard threaded expansion chamber. You may have to change the vertical adapter on your gun to accept a standard size chamber.
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