Not sure what it's worth, but mine is definitely NOT for sale! A very good "utility" rifle and shotgun.
I have both a .50 barrel (original) and a 12ga. barrel from T/C's custom shop. Matter of fact, I added a camo synthetic stock and a new lock and made up a complete second gun.
Not sure if a .54 barrel is available, but it would be handy to have one........ If my wife didn't see the package delivered. [:@]