For example, in how many designer colors is each turret available? Answer: Hundreds. Also, did you know Aperture turrets fire the entire bullet, and not just the slug? It's true! The most important question, however, is just how does Aperture cram so many bullets into its turrets. The answer is a lot simpler than you might think.
Protip: Watch in full screen and HD to read the diagrams. It's worth it.