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UDP-9

First things first, there are no AR9 animations in game so I had to settle for AR15 animations (trust me the MPX animations looked worse)
Best way to fix this is to download ModernLancers Mlok Adapters or MVG Mlok Grip and mount a grip to fix most animations, however the reload animations still look funky. Sorry but there's nothing I can do about it

This mode utilises Ground Branches robust inventory system
In other words when running a Glock as a Sidearm your UDP-9 will use the same magazine pool, effectively doubling both your weapons usable ammo.

-UDP-9
-UDP-9 Auto
-UDP-9 FDE
-UDP-9 FDE Auto

Unfortunately this mod has some small bugs I can't fix.
Other than the obvious animation issues,
The UDP-9 seems to only want to eject 5.56 casings (that's what I get for making it a child of the AR15),
And despite removing the weapon fire select animations they still play (just think of x as a play with your gun button)
Other than that the mod works perfectly fine, just some small cosmetic issues, Enjoy!