I know you guys are good so I'm coming to you for some help. I got this cleaning rod in a GEW 88 and I know its not the original, but I have no idea what it actually goes to. I have my suspicions that it might belong to a Mauser of some sort (which I know very little about). It has a brass head on it and is 15-7/8 from tip to tip, no serial number. I saw that early Argentines have a brass head but it looks to be a different shape, and other than that, I haven't found any other brass headed cleaning rods so I'm downright stumped.