Manufacturer catalog
American Ordnance is a United States ammunition manufacturer and Day & Zimmermann company that operates load, assemble, and pack production at the Iowa Army Ammunition Plant for artillery, mortar, tank, medium-caliber, energetics, and demolition-munition programs.
4 weaponsAmerican Ordnance LLC works from the government-owned Iowa Army Ammunition Plant in Middletown, Iowa, where official company and EPA sources describe it as the operating contractor for munitions production, facility maintenance, storage, transportation, quality assurance, production engineering, and related program management. Its public product pages emphasize load, assemble, and pack work for medium-to-large-caliber ammunition and high-explosive components rather than small-arms manufacturing.
The company sits inside Day & Zimmermann's munitions business. Day & Zimmermann identifies American Ordnance as its unit for Iowa Army Ammunition Plant operations and notes storage-facility responsibility at Milan Army Ammunition Plant; a 2025 Army deactivation notice records Milan's formal closure ceremony after the plant's production mission had already moved away. Current American Ordnance pages list artillery projectiles, mortar cartridges, 40 mm grenades, tank ammunition, warheads, demolition charges, propelling charges, and mine-clearing charges among current or recent production areas.
American Ordnance's artillery product page names the M795 as a 155 mm high-explosive projectile it produces at Iowa Army Ammunition Plant for U.S. military and approved customers.
Sources: American Ordnance artillery products
American Ordnance's energetics product page identifies the M58 and M59 MICLIC mine-clearing charges among products made at Iowa Army Ammunition Plant.
Sources: American Ordnance energetics products
American Ordnance's mortar page describes production of 60 mm high-explosive mortar cartridges for the M224 mortar system; the catalog uses M888 as the connected 60 mm HE cartridge record.
Sources: American Ordnance mortar products
American Ordnance's mortar page lists 120 mm high-explosive and smoke mortar cartridges with white-phosphorus filler for the M120 and M121 120 mm mortar systems.
Sources: American Ordnance mortar productsA Court of Federal Claims opinion records that Mason & Hanger and General Dynamics Ordnance Systems formed American Ordnance LLC in 1998 and that American Ordnance operated the Iowa Army Ammunition Plant from that year forward.
Sources: American Ordnance v. United States opinion
The Federal Trade Commission described American Ordnance as a Day & Zimmermann and General Dynamics joint venture providing mortar and artillery ammunition load, assemble, and pack services, then required General Dynamics to sell its interest as part of a competition remedy.
Sources: FTC General Dynamics-SNC challenge
Day & Zimmermann's company history says it acquired 100 percent of American Ordnance, previously a General Dynamics joint venture, and that American Ordnance operated both Iowa Army Ammunition Plant and Milan Army Ammunition Plant.
Sources: Day & Zimmermann history
The U.S. Army announced more than $961 million in 155 mm production-capacity contracts and listed American Ordnance in Iowa among the domestic awardees tied to M1128, MACS, and related artillery-production work.
Sources: U.S. Army 155 mm production awards
American Ordnance operates at government-owned ammunition plants, so public sources sometimes describe the same work through company, Day & Zimmermann, U.S. Army, EPA, and plant names. No image is included because the official logo URL was reported as a missing production image asset by the local image report. This profile describes manufacturer and facility context only; conflict-use claims remain with individual weapon records.
Category
Standalone missiles, bombs, rockets, torpedoes, and guided or unguided explosive payloads.
