As long as it's the large firing pin then it SHOULD work. I believe the bolts in the MKII to MKIII to be the same and the difference being the firing pin assembly. If you had asked this question a couple days ago I could have tested it for you because I still had a AE MKII and still have my old 2012 AX but I shipped out the AE to it's new owner yesterday.
My question is why though? I just sold my AE MKII folder for $2750, a firing pin assembly is going to run you most of the difference of what you can get into an AT for and have a far superior rifle. I'd sell your AE and go that route. You can get the 6 lug small pin bolt with 3 position safety, plus all of the benefits of the AT for not much more money. Possibly the same money if you go used.