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Suggest a Feature →Annual BASOPS for Rock Island Arsenal, Illinois — the largest government-owned weapons manufacturing facility in the U.S. The Arsenal manufactures 155mm artillery systems, gun carriages, and small arms components. Located on an island in the Mississippi River between Illinois and Iowa, Rock Island has produced weapons since the Civil War. O&M covers manufacturing operations, historic preservation, and support for approximately 6,800 military and civilian personnel.
FY2025 MILCON for Rock Island Arsenal. Manufacturing facility modernization ($18M) and historic building preservation ($10M).
Base-level spending data from Military Construction (MILCON) appropriation requests, installation status reports, and Army/Navy/Air Force installation management budget justification documents.