The Allison Speed Brush is a tool for cleaning all six chambers of a revolver at once.
The Tool carries six standard bore brushes. To use, simply push open the cylinder, push the tool in the cylinder and pull out. All six chambers are cleaned at once.
This is very practical for P.P.C. shooters, IPSC shooters (that use revolvers), bowling pin shooters, and any other shooting where the shooter needs a clean gun quickly.
Speed loading is done more efficiently with a clean cylinder.
In most courses of fire the shooter does not have time to clean his gun between stages. With this tool carried in the pocket, the shooter can keep it clean on the line.
This is not to say that the Allison Speed Brush cannot be used by non-competitors, as no one likes to spend time cleaning their guns and this is a time saver.