I've just been out looking at the pictures on the AYA site (thanks Don - I don't know why I hadn't thought of that!).
My best guess at model (emphasis on the word 'guess') is a model 2. My new (to me) AyA lacks the articulated front trigger. Beautifully made shotgun. Now all I need is to find someone who can turn my wood (I have a nice piece of Turkish crying out to be used), inlet it, and maybe do a nice 22 lpi checkering job without sending me the rest of the way to the poor house ;-)
Best,
Kyrie
