ATK Defense Group


ATK Defense Group Headquarters


ATK Defense Group is an industry leader in ammunition, precision and strike weapons, missile-warning solutions, and tactical rocket motors across air, sea and land-based systems. The group is the largest U.S. producer of small-caliber ammunition, as well as a leading producer of medium- and large-caliber ammunition and medium-caliber gun systems. ATK Defense develops advanced capabilities for missile-defense interceptors, fuzing and warheads, weaponized special-mission aircraft, and propulsion/controls. The group also brings extensive experience and expertise in defense facility management and modernization.

ATK Defense Group encompasses four divisions: Armament Systems, Defense Electronic Systems, Missile Products and Small Caliber Systems.

Armament Systems
ATK Armament Systems specializes in innovating low-cost, highly reliable and precise munitions for artillery and mortar systems. The division is a world leader in developing and producing tactical and training tank ammunition, with more than 30 years of experience and 4 million rounds provided to date. We are the world’s top producer of medium-caliber gun systems and ammunition, and the developer of the revolutionary XM25, an airburst grenade launcher also known as the Individual Semi-Automatic Airburst System. Armament Systems also creates systems that protect soldiers on the battlefield. We manage America’s largest, privately owned proving ground, which gives ATK and its customers the ability to rapidly test weapons and demilitarize them when necessary.

ATK Armament Systems produces a complete family of medium-caliber training and tactical ammunition that meets today’s requirements and serves as the cornerstone for tomorrow’s Future Combat Systems. ATK medium-caliber ammunition can be fired from Apache helicopters, A-10 Thunderbolt II aircraft, and Bradley infantry-fighting vehicles. Outstanding reliability, accuracy and lethality make our 20 mm, 25 mm, and 30 mm rounds effective in anti-armor, anti-materiel, anti-personnel, ground suppression, air defense and shipboard-defense applications.

The products within Armament Systems include: the Precision Guidance Kit for artillery,  the XM395 Precision Mortar, a full line of tactical and training 20, 25, and 30mm medium caliber and 120mm tank ammunition, and medium caliber cannons to include the Bushmaster line of Automatic Cannon chain guns.

The primary email contact for the division is

Defense Electronic Systems
ATK Defense Electronic Systems is a leading developer of next-generation SEAD/DEAD weapon systems and missile-warning and aircraft survivability solutions. In addition, the division is a provider of special-mission aircraft integration and support, aerial targets and training systems.

The products within ATK Defense Electronic Systems include: the Advanced Anti-Radiation Guided Missile, the Joint and Allied Threat Awareness System, the AN/AAR-47 Missile Warning System, AC-208 Combat Caravan, MC-27J and Light Gunship.

The primary email contact for the division is

Missile Products
ATK Missile Products is an industry leader in the development and production of propulsion and controls for air-, sea- and land-based tactical missiles, missile defense interceptors and space launch vehicles; fuzing and warheads for both tactical missiles and munitions; precision metal and composite structures for medium and large-caliber ammunition, military aircraft, ground vehicles, and missile systems; load, assembly, and pack (LAP) of medium caliber munitions; and propellants and powders for the canister and commercial markets, individual re-loaders, original equipment manufacturers and distributors of TNT and other energetic materials. The division also has significant capabilities and innovative products in other areas such as modeling, simulation, and analysis of challenges in electromagnetics and counter-electromagnetics, and the application of our core energetic and combustion capabilities to the oil and gas market.

The division operates four world class manufacturing and test facilities, as well as several satellite offices in the following locations: Baltimore, MD; Elkton, MD; Newington, VA; Plymouth, MN; Radford, VA; Rocket Center, WV; Ronkonkoma, NY; San Jose, CA and West Palm Beach, FL.

The products within ATK Missile Products include: HELLFIRE® Propulsion SystemIM HELLFIRE® Propulsion System; Guided Multiple Launch Rocket System Advanced Warhead (GMLRS AW); FMU-143 electronic bomb fuze; Third Stage Rocket Motor for SM-3; Javelin Launch Tube Assembly (LTA); Pulsed Electro-Magnetic Multitiered Capabilities; and oil and gas well stimulation kits.

The primary email contact for ATK Missile Products is

Small Caliber Systems
ATK Small Caliber Systems is the world’s leading producer of high-quality ammunition and links for the military in 5.56 mm, 7.62 mm and .50-caliber rounds. ATK ramped up production at the Lake City Army Ammunition Plant from the 400 million rounds produced in 2000 to a capacity of 1.6 billion rounds by 2012.

ATK facility management capabilities are integral to the U.S. munitions production enterprise at the Lake City plant in Independence, Mo. We have served as the leading Department of Defense Prime Contractor for production of small-caliber ammunition since April 2000. In that time, ATK has produced more than 12 billion rounds of 5.56 mm, 7.62 mm, .50-caliber and 20 mm ammunition, and reduced costs to a cumulative savings of $1 billion. In partnership with the Army, ATK has implemented more than $370 million in modernization projects at the plant to ensure it remains a viable national asset for another 70 years.

ATK Small Caliber Systems continues its leadership in the global defense-systems marketplace by supplying the U.S. government and its allies with quality, cost-effective non-standard (non-NATO) ammunition. The division serves as a prime systems integrator to procure and deliver non-standard supplies, including small-, medium-, and large-caliber ammunition, grenades, aviation rockets and weapons.

By leveraging our core competencies in manufacturing, quality, logistics, program management and supply-chain management, ATK generates best value and assured delivery of mission-critical supplies for use by U.S. and allied forces.

The primary email contact for ATK Small Caliber Systems is