US Air Force orders 30,000-pound GBU-57 bunker busters as Iran tensions rise
After using 14 GBU-57 Massive Ordnance Penetrators (MOP) during Operation Midnight Hammer against Iranian nuclear facilities, the USAF needs to replenish its arsenal. B-2 bomber drops a GBU-57 during a test(photo credit: US AIR FORCE)ByANNA AHRONHEIMFEBRUARY 16, 2026 10:25Updated: FEBRUARY 16, 2026 17:44 Amid high tensions between the US and Iran, the US Air Force has awarded Boeing a sole-source contract to replenish its arsenal of GBU-57 Massive Ordnance Penetrator (MOP) bunker buster bombs, which the US dropped over a dozen on Iranian nuclear facilities in June during Operation Midnight Hammer. According to a partially redacted justification notice posted online last week, the US …