Gun cleaning system

An improved gun cleaning system for use in cleaning a firearm bore, the system including:

• a cleaning rod having a diameter less than the bore to be cleaned, the rod having one end adapted for the attachment of a cleaning element to be moved longitudinally within the bore, the cleaning rod having a handle opposite the cleaning element;
• a cleaning rod centering guide, the guide formed as a hollow frustoconical member with a closed smaller end and an open larger end, the guide having a smooth outer surface, having a series of concentric annular, triangular cross sections projections arranged on an inner surface of the hollow frustoconical member, the triangular projections being disposed inward towards a longitudinal axis of the guide so as to form a series of annular stops of decreasing diameter, the closed end being formed with a threaded aperture to receive an insert member with a cylindrical opening sized to fit a cleaning rod having a diameter appropriate for the bore of the firearm to be cleaned and a first set of threads formed on the insert member, and the threaded aperture having a second complimentary set of threads adapted to engage the first set of threads on the insert so as to provide a means to change the cylindrical opening in the cleaning rod centering device, the cylindrical opening in the insert being of a size to allow the insertion of the rigid cleaning rod and allow longitudinal motion of the cleaning rod while maintaining the cleaning rod essentially centered within the bore as the cleaning tool is moved longitudinally within the bore.