It kinda does. some here have said 2 primary 123’s work. But honestly with the 21700 body and an adapter kit you can run 2x123’s 2X16340’s 1X16650 1X18650 or a 21700. Need to make sure voltage is ok with your head but it’s a pretty versatile body.
He’s sold quite a few of these 21700 bodies already. I’d like to to think he made them because alot of us have been bothering him for some time now to make them. IMO he will sell many more of his 2X21700 when they come out.