To increase the parts supply for the Boeing [BA] GBU-57A/B Massive Ordnance Penetrator (MOP), the U.S. Air Force last August began using technology from the Army Tactical Missile System (ATACMS) by Lockheed Martin [LMT], as the Air Force plans to move to a Next Generation Penetrator (NGP) after refilling MOP stocks, according to Air Force Materiel Command. Last June, seven Air Force B-2 stealth bombers by Northrop Grumman [NOC] dropped 14 MOPs on Iranian nuclear sites in Operation Midnight Hammer…