There has been some debate the last year or so as to whether or not the American Gun Company would actually produce any highwalls. They are a sister company to McGowan barrels. Well, they have made at least one, and as many as 19 if their serial numbers are sequential. The reason I know that is that I have received No 19. I put it on Gunbroker auction # 159153752. It's a coil spring action with an octagon top. Feel free to comment on the action. It's made of 4140 steel. There are some cast parts, including the lever and the hammer, and probably most of the internal parts. The action is pretty smooth, but the outside of the frame needs a good bit of polishing before it can be finished.