I wish I could claim credit for the build but I didn't do it. I'll tell you what I know about the background.
I recently purchased this via Gunbroker from a shop. The original builder was a man who let it go in a trade and supposedly regretted it, then the 2nd owner brought it into the shop on consignment.
I saw it on Gunbroker, was sorely tempted, let it go, then bid on it when it was relisted and got it.
This was a quick cell phone pic before taking it out to the range for the first time. I hope to do more and better ones.
It has an 18" octagonal barrel. The sides of the receiver have been shaped to match the bevel of the barrel. I don't know the rifling. The loading lever is inlet into the forearm and ground/shaped at the front to be retained by a custom retaining latch.
The front sight is dovetailed and the rear sight is a semi-buckhorn with a tiny ghost ring, the whole thing sliding on an inclined ramp for elevation adjustment, and one mounting screw slot is elongated for windage.
The wood appears to be tiger stripe maple and the forearm has a brass cap.
The shoulder stock has a metal but cap and a carved cap on the pistol grip.
It came with the original C&B cylinder as well as the 45 Colt cylinder pictured.
It's my new Walker Carbine and I like it.