Interesting things about this piece. Notice it has a screw in cap with a pinched tube. This proved problematic for RMK, as the pinched tube even though pinche at the hilt, it tended to deform the remainder of the tube. This rendered threading ineffective by not be able to maintain the orignal round shape.

You will also notice the brazed thong ring on the butt cap. This too was short lived to maybe only a couple of examples made. Hunt has a photo of one such as this in one of his books, showing why it was short lived, but his knife has the round tube all the way to the hilt.