Orbital ATK has been awarded a series of contracts to supply medium and large-calibre ammunition to the US and undisclosed international military customers.
Awarded by the US Army Maneuver Ammunition Systems as the single manager for conventional ammunition, the contracts have a combined value of $120m, and support US and allied soldiers with ammunition for air, sea and land platforms.
Orbital ATK Defense Systems Group Armament Systems division vice-president and general manager Dan Olson said: "Our development and production of highly reliable and effective ammunition for the warfighter spans a wide spectrum of technologies and capabilities.
"Whether we are creating new, or producing proven ammunition types, our focus on our mission remains constant as we provide superior armaments and services to those who defend their nation's security."
The domestic medium calibre orders included a broad range of purchases for 20mm, 25mm, 30mm and LW30mm ammunition for multiple services for use with air, sea and land weapons platforms.
Foreign medium calibre orders require the company to supply an array of 25mm cartridges, including the M791 armour piercing discarding sabot with tracer and its ballistically-matched, target practise counterpart M793 that provides realistic training at a low cost.
Under the large-calibre ammunition contracts, Orbital will deliver an undisclosed number of 120mm, M1002 multi-purpose anti-tanks, target practise with tracer, and M865 target practise cone stabilised discarding sabot with tracer designed for use with the Abrams main battle tanks.
Orbital has also secured orders for additional development and low-rate production of the M829E4, which is the US Army's fifth generation, 120mm kinetic energy anti-tank cartridge.
The cartridge incorporates an advanced design, long-rod penetrator and proprietary, three-petal composite sabot that allows for efficient transfer of energy to maximise the rod's penetrating power.