Hmmmm, sounds like what I did back in ancient history during ITR at Pendleton. Dragging old M1's through the sand, dirt, and dust, so clogged up with crud couldn't even open the bolt while waiting to got live fire. Had to break it down while standing in line, parts in pockets, hands, op rod spring in teeth [yuk], first shot got face full of oily sand. That night just before going to the showers, I remembered what some guys who went through boot in the Army years before me had told me. Stripped that sucker down to the metal parts, to the showers I went. All the guys in there said I would get busted if the troop handler came in and saw what I was doing, pretty soon I had a crowd around me, then they all left and came back with their parts. Everybody left with clean parts and barreled receivers, oiled them down, lubed them up, put them back together, back in the racks, couple of Sgt.'s came in ready to chew some butt about dirty rifles, couldn't find any. They left the barracks in a very bad mood. But that was back when accuracy was measured in Minute of Man, now it's Minute of Fly Speck. Semper Fi!