The OSMP is a tool for researchers, journalists and practitioners trying to learn more about munitions and their use and impact in conflicts.

The hundreds of verified images in the archive serve as a searchable reference library of munitions, each described by a number of taxonomies including model, munition category, use, colour, condition, and calibre.

The project was an initiative of civilian harm watchdog Airwars and the Armament Research Services (ARES), a technical intelligence consultancy specialised in munitions.