The model number is 5915 and the barrel has a 1:66 twist. It comes with everything you need including balls, patches, flints, cleaning stuff, and a nice plastic case.
Most significant is the brand new, redesigned new style Fint lock mechanism which gives 100% reliable, trouble free, very fast ignition; the slow twist round ball barrel; and the new style redesigned vent liner.
It is in mint condition. $600 OBO
I am in North Carolina.