Ok, I wanted to post a shotgun for you to build, mod, and have fun with. Its very simple to build =D
Step 1: Barrel.
Step 2: Trigger/Handle
Step 3: Other Side of Barrel.
Step 4: Front of the Barrel.
Step 5: Final Attachments/Other Stuff
Step 6: You Are Done =D
You have built a great shotgun =D You get a plate of cookies =D