Just bought a nice Izzy M38 & M44, however, I do have two questions. First question pertains to the barrel bands. While the metal and wood on both guns are in excellent shape, the barrel bands have some light surface rust on them. Nothing that a little oil and 0000 steel wool can't fix, but I was just curious if this was common on these guns. My second question pertains to the slings that came with the guns. The 1943 M38 has the standard green dog collar sling, while the M44 came with what appears to be a dark blue (almost black) dog collar sling. Is this the correct sling for a 1944r M44?