i was given several sections of brass cleaning rod and im not sure what type it is, the handle has the aluminum football shape with the end having a female thread about a 1/2 inch inside the shaft. the other sections are 2 types, one with male threads on each end and the other with female threads on each end again farther down in the shaft of the rod. Is this a type of barracks cleaning rod ? and what am i missing ? i do not see a section for the brush or patch tip . thanks