GBU-57A/B Massive Ordnance Penetrator

This model represents the GBU-57A/B, the initial operational variant of the U.S. Air Force’s Massive Ordnance Penetrator (MOP) — a deep-penetration air-delivered munition designed to neutralize hardened and deeply buried targets. While commonly referred to as a “30,000-pound class” weapon in public specifications, the actual labeled operational weight of the A/B variant is 27,125 lbs, as reflected in official stenciling and internal documentation.

The A/B version features the BLU-127/B warhead, filled with AFX-757 and PBXN-114 explosives, and was developed for deployment from B-2 Spirit platforms, later compatible with the B-21 Raider. This model includes accurate stenciled labels, contract overlays, and explosive fill breakdown based on publicly available references.

The surface is finished in a gray operational coating, consistent with low-visibility paint schemes used on active service munitions for stealth and platform integration.

Disclaimer: This model is a personal interpretation based on publicly available photographs, reference images, and open-source data. While it strives for visual and symbolic authenticity, it does not represent exact engineering specifications or classified internal details. Dimensions, textures, and labeling have been adapted for creative expression and modular clarity, rather than technical precision.