As a former combat soldier and retired attorney, I support Americans’ right to keep and bear arms. That much said, current gun adherents misrepresent the facts when they disingenuously claim the Bushmaster or AR-15 – the current weapon du jour — is not a military weapon. The Bushmaster is the commercial version of the military CAR-15, the only significant difference being that the latter allows automatic and semi-automatic fire. But that difference is meaningless. I carried a CAR-15 in combat in Vietnam and had to use it in several firefights. Not once did I select automatic fire. Any infantryman will …