It would seem like the mod works well, I didn't try it with every available weapon, but so far so good. 
I did spot one bug though: while Be Akimbo is active, as soon as you click on the Crew Management menu option, the game locks and you have to pull up the task manager if you want to close the game.

welp don't install or you will have to uninstall payday and find out how to rebuy it, at this time I post this, payday 2 is $44 USD so do not download

Had a couple of issues for some reason.
1. Some of the akimbo models wouldn't load at all and trying to preview them or mod them soft-locked my game that make me have to alt tab out and close it manually. It seemed to only be some of the shotguns (not sure why though as the akimbo mosconi, Joclene. judge, steakout, and Goliath worked fine) and the Little Friend .308 Video playlist here.
2. Some of the akimbo weapons outright crashed the game upon equipping them. They were the AMCAR and the CAR4 in part 2 and 3 of the playlist they crashed to desktop causing the black screen at the end. Those parts have the crash logs in the description.
3. The akimbo shotguns all reloaded by shell even the ones that have magazines still reload by shells.
Don't think i have any mods the would've clashed and cause compatibility issues. Only ones installed are listed below:
Better bots
mod list lite
No post processing reborn
LMG steel sights
Some perk deck mods made with maples custom perk deck mod
and some custom heist music mods.
If you have any questions or need any other info for troubleshooting let me know.

I can not reload a weapons with your akimbo mod, no manual or automatic reloading (akimbo Grom, IZHMA).

What folder does it go in?

Quote:How do i use it?

nevermind.

How do i use it?

in mods or override?

Game still not opening with that mod

Not working for me, I installed the mod, i dont think im doing it correctly, My game starts and when i look at the in game mod options it shows up but does not effect any files for some reason? if possible, help would be appreciated.

my game crash everytime with or without this mod.
yeah it crash after i remove this mod

My game crashes with this mod. Explain how exactly I can fix that, I'm not fully sure what you mean by "you can try to remove add-on things and regenerate list"

what do you mean "any gun"? this isn't what i think it is, right?

you heard of elf on the shelf now get ready for
AKIMBO FOR EVERY BAKIMBO RAKIMBO RUN GUN

crashes everytime when booting the game, without this mod it works fine tho.

log :

nice, really nice .... 

That reload though