Mass­a­chu­setts — Attor­ney Gen­er­al Mau­ra Healey stepped up the ban on mil­i­­tary-look­ing rifles yes­ter­day, prompt­ing licensed gun enthu­si­asts to flood gun shops on what they believed might be the last day to buy AR-style guns here. Healey issued a notice to all gun sell­ers and man­u­fac­tur­ers in Mass­a­chu­setts ban­ning guns