page_title: Massive Ordnance Penetrator
hierarchical_section_title: Massive Ordnance Penetrator
caption_attribution_description: English: A B-52 releases a test version of the Massive Ordnance Penetrator (MOP) during a test of the weapon over White Sands Missile Range, N.M. in 2009. (DoD photo)
context_page_description: The GBU-57A/B Massive Ordnance Penetrator is a precision-guided, 30,000-pound "bunker buster" bomb used by the United States Air Force. This is substantially larger than the deepest penetrating bunker busters previously available, the 5,000-pound GBU-28 and GBU-37.
  The Massive Ordnance Penetrator is a weapon system designed to accomplish a difficult, complicated mission of reaching and destroying an adversary's weapons of mass destruction located in well-protected facilities.
context_section_description: The GBU-57A/B  Massive Ordnance Penetrator (MOP) is a precision-guided, 30,000-pound (14,000 kg) "bunker buster" bomb used by the United States Air Force. This is substantially larger than the deepest penetrating bunker busters previously available, the 5,000-pound (2,300 kg) GBU-28 and GBU-37.
  The Massive Ordnance Penetrator (MOP) is a weapon system designed to accomplish a difficult, complicated mission of reaching and destroying an adversary's weapons of mass destruction located in well-protected facilities.
caption: GBU-57 MOP prototype
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