Got it in today. Very clean, doesn't look like it lead a hard life. There might be a little erosion in the bottom around the draft hole. It's smaller than I imagined. There's nothing in the picture for scale. It has a removable stinger. The bit is nice and tight in the stummel. This is my first unfiltered pipe and I'm not sure I'll get along with it. It's much too slim to convert to a 6mm, but I did figure out that there is room in the shank for the contents of a 9mm filter and the stinger too so I will try that next time. I have two 9mm pipes and don't smoke them that much, so that may be the solution going forward.
The loose activated carbon in the shank did a decent job of imitating a filtered pipe. After the smoke, it came out clumpy and wet. Probably the same as when contained in the paper cartridge, I just don't see it.