>>2995561No soft even light is essential. For smaller things it's easiest to rotate the object and have white back drop. You put a light on the backdrop and blow it out so only what you are modeling is in the photo. For imaging gun parts it is way way way easier to just make from scratch. The program will not give clean surfaces but rather pebbled surface. Unless of course you don't want to actually work then yeah go right ahead.
Here's what the head looked like in the scanning program (agisoft in this case). Let me see if I can find a scanning shot from a prosthetic I made for a goat.