Letter from Chip Northrup Gun Laws Should Be Sane, Sensible My company makes marksmanship training simulators for the military. We use military weapons, all of which are variants of the AR 15, as the simulation controller, so that the Marine or soldier can use their service weapon in the simulation. The rifles are machine guns capable of firing up to 800 rounds per minute. To develop the simulations at our offices in Texas and North Carolina, we use the HK 416 for the Marines and the Sig MCX for the Army. What they can do to a human body you…