It may very well not be a barnes, but the pic isn't good enough to tell one way or another, including looking at the base, for me at least. It sure looks like a mono, but who the hell knows? The grooves look too far back on the shank and I suspect it has a 3rd groove hidden in the skin where GMX's only have 2 grooves (I believe) and the e-tips I have seen had no groove at all (some have a single ring, but not a groove). Cutting edge raptor or one of the other oddballs maybe? I still say barnes.
Hell if I know.
