Just came across it today for the first time in a long time. It's all that remains of the honest to God, Government issued, cleaning rod that I had for my M-14 in Vietnam. Brought it back with me and used it on my 30-06 as well as my Super Blackhawk. I think it had 4 extension pieces, but over the course of years all but 1 have disappeared. The hex opening on the left was for removing the gas cylinder plug, while the far left end is the tool used to disassemble the bolt for cleaning. The right end with the holes was also used for something, but I can't remember what. I had forgotten all about it, and ran across it while looking for something else. Damn.....43 years goes by FAST!
Andy