Presidio U.S. Customs and Border Protection seized firearms and ammunition from a Mexican National and U.S. permanent resident trying to enter Mexico at the Presidio Port of Entry on July 8. According to a CBP release: “During Southbound inspections, CBP officers discovered 6 rifles and two handguns, 180 magazines, 500 rounds of ammunition and firearm components including machine gun barrels in a 2013 Nissan X-Trail headed for Mexico. Non-intrus…