AGT Vulcan 2 / 3 Buttstocks - same?

Hey guys ... subject asks it. I have a V3 and while I am generally really happy with it - the LOP is just a tad short for me. Jake (I think is his name) from JB3D printing has a V2 adjustable buttstock and replaied to my e-mail asking if he has one that will work for the V3. He asked if I knew anything about the V2 ( is it the same stock / dimensioning? ) Do any of you know?

Thanks . . .