Taurus model 94 SS .22 with underlug

[H. Faversham]

Does anyone know the year in which Taurus added the barrel underlug to its stainless steel model 94 (.22 LR). Before it did so, the SS model 94 looked very much like the S&W model 63 kit gun, a classic beauty.

I've asked on the Taurus and Rimfire Forums, but no one knows.

 

[AirPower]

I'd like to know too. The new Taurus 94 seems to be same as Tracker, with big full lug recessessed in there.