I would bet a dollar to a donut that is Rod England's Alex Henry combo without the provision for the tang sight. Jason makes Rod's barrels as well. Rod hangs at his booth at Friendship. Most guys, unlike Curtis, install their own tang sights and wanted a blank tang. I used to cut the ears off and weld up the hole prior to this availability. I bought one of them last year. It's not a fake, but so closely fitted together that you have to hammer the parts apart to separate them and then do a little file work so they separate easily.
Of course, this is speculation based on clues. Jason probably saw an opportunity since TOTW has cut back on their offerings.