No but there is a octagon barrel
You will have to call TC for the information. No published data.
In good condition the going collectors price is around $240.
I too have a rifle matching this description. Any information would be of interest.
Requires hand on inspection.
Just what you have described. Without more information, no better answer can be given.
is about 3,695
It will be eight sided,thus the name hexagon barrel.
yes in most cases it can be interchanged with little or no modification