PVA AI prefit barrel question

[Sogan]

Going to order an AI prefit from PVA. The prefits ask whether it is a small shank (27mm x 2.0) or Large (30mm x 2.0). My gun is an AI AE MKIII and I’m waiting to get a 6creedmoor barrel for it. I’m assuming I need the small shank barrel?

 

[winniethepooh]

Correct on small shank. 30 is for the long actionn

 

[Sogan]

I’m assuming PVA “AI prefit”? Will fit an AE? I have an email out but haven’t heard back yet.