Hey all. First post here. Been sculking around for a bit, lots of good reading & info. I have an FR-8 Spanish Mauser that I bought over twenty years ago. The stock & barrel configuration has a second tube under the front end of the barrel, looks almost like the gas tube of the CETME is was made to mimic, just under instead of over. Anyway, it's more of a front sight brace than anything but they made it hollow and removeable to serve as storage. I've tried twice to open it but stopped for fear of causing damage. Until yesterday, I had watched a pretty decent documentary on youtube where the guy removed it and opened it up, made it look easy and at least let me see how it came apart. So, probably missed the opportunity for "long story short" here, but I got it open! Was a struggle but I was convinced there was something in there and figured it must be old, could be something cool. Well, first was the god awful smell. Nauseating, like you would hope it was only something dead and rotting but it must be worse. Looked like grease at first so I go probing into it with a pick and there's solid stuff. I pull out chunks, thought they might be cleaning patches at first but stuff was very fibrous. I pull out more, things are greasy but still lots of fibers and weird little things that almost looked like seeds but they have a shape like a miniature vial. They look like they must be man made, not sure if the fibers are attached. They look so familiar I should know what they are but almost like that information is from a previous life... Must be from around the 1950's when the rifle was made. I'm wondering if they were some kind of grease packet you pinch the tip off of and squeeze the grease out. But they are so small. Apologies for the diatribe. Anyone have a clue?