New GBU-57 Massive Ordnance Penetrator Parts Reverse Engineered From ATACMS Ballistic Missile Tech

Replacing GBU-57s dropped on Iran highlights issues that come from being locked into a single contractor, which the Pentagon ...
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What is the GBU-57A/B 'Bunker Buster' Bomb? 30,000-Pound Non-Nuclear Weapon US May Use Against Iran

The United States deployed its most formidable conventional weapon —the GBU-57A/B 'Bunker Buster' bomb or Massive Ordnance Penetrator — in 22 June 2025 strikes against Iranian nuclear facilities. This ...
The National Interest

Why Iran Should Fear America’s GBU-57 “Massive Ordnance Penetrator” Bomb

The GBU-57 MOP is the world’s most powerful non-nuclear aerial munition, packing 5,342 pounds of lethal high-explosive inside its 30,000-pound bulk. The bomb is so heavy that only the B-2 and the B-52 ...