Adds 14 new weapon mod kits(Total 16 with vanilla) to 10mm SMG. Progressively turn 10mm smg to a custom carbine(a shotgun or a machine pistol with update 1.3) both visually and stat-wise. So how does it work? After gathering 3 applicable mod kits you can upgrade the weapon at a workbench for further upgrades. There is also an option that you can downgrade your weapon to the previous version and get your mod kits back at the workbench. To prevent level list conflicts and keep it script-free, I used already existing vanilla weapon kits. This also makes it somewhat lore-friendly. Kinda upgrading your gun with what you find rather than what you want.

Here is the list of mod kits:
- Vanilla 10mm SMG
10mm smg extended clip(Vanilla)
10mm smg recoil compensator(Vanilla)
9mm smg light bolt - increases the rate of fire 
I__________________________________________________________________________________________
I        I       I
        v       I       v
- Workbench upgrade to 10mm Carbine (Long barrel upgrade)I- Workbench upgrade to Custom Assault Shotgun (12 gauge Conversion)
Laser Sight - Decreases spread            I                Laser Sight - Decreases spread
C. Repeater Maple Stock - Decreases spread     I        Hunting Shotgun Long Tube - Increases damage
C. Repeater Custom Action - increases the rate of fire      I        9mm Drum - Increases magazine size
I                                                                                         I
I                                                                                         I______________________________________
                                         I                                                                                                                                                          I
        v                                                                                                                                                          v
- Workbench upgrade V2 to Custom Assault Carbine (5.56 Conversion)                - Workbench upgrade to 10mm Machine Pistol(Light w. parts installation)
10mm Suppressor                                                                 10mm Suppressor
Varmint Rifle Scope      10mm Laser Sight
Service Rifle Forged Receiver - increases weapon condition   10mm Extended Magazine

WARNING! Before upgrading at a workbench, you need to remove all mods first. The recipe asks for the gun and mod kits themselves separately. So I highly recommend Weapon Mod Menu.

COMPATIBILITY Till the first workbench upgrade, the weapon uses vanilla 10mm smg ID. After that, it uses a custom ID. Besides, it requires you to vanilla mod kits to upgrade, so I don't think it will cause a problem whether you load this after or before your conflicting mod.