Lever Monster Killer is an unique lever shotgun.
This is weapon is based on this "concept art"

Weapon can be crafted on workbench.

requirements: Repair skill 30

Parts you need:

• 2 Lever shotguns
• 3 Scrap metal
• 1 Wrench
  

You can do what ever you want with this model as long as you give me credit

Credits
paha989 for creating the model
falloutMG for uploading this image and there for giving me the idea to make this weapon