"And that, sir, is the beauty of the DC-17m Interchangeable Weapon System," I said, patting the rifle. "While using the weapon will take some getting used to - as will figuring out a good way to holster it - maintenance is as simple as a calibration every once in a while." I paused. "Granted, I don't know how to do that just yet, but I tend to have a way with problem-solving."