Having never seriously looked into 3D printing and knowing essentially nothing about firearms, a few mostly-unserious questions come to mind:

1. Is there any value in 3D printing the inverse of the shapes one would need to use as a mold?

2. How many subdivisions of gun-shaped part I wonder are needed before the ultimate intended shape is obscured without impacting the functionality

3. Given 2, is there even any value in 1.