Its not meant to be a commercially viable product... just a project.Uh, not being funny, but wouldnt see-thru shells be MUCH cheaper (and reliable?)
Not sure how it would work, but you COULD find a way to fit a light source so it shines down the barrel, showing you where you're aiming? Kinda like the hold-a-pistol-and-torch-at-once thing they always seem to do in movies?
My two cents/pennies/yen