Orbital ATK Receives $53 Million Large Caliber Training Ammunition Orders from U.S. Army
Demonstrated Reliability and Affordability Continue to Drive Demand

Dulles, Virginia 15 May 2017 – Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, announced today that the company has received contracts valued at $53 million to produce large caliber training ammunition for the U.S. Army. The orders include both 120mm and 105mm ammunition types. The 120mm training ammunition, used by the Abrams main battle tank, includes the M865 kinetic energy and the M1002 multi-purpose tank training rounds. The 105mm M724A2 is used for crew training on the Stryker Mobile Gun System vehicles. These training rounds close-ly replicate tactical ammunition in appearance and ballistic performance to provide the warfighter with an affordable, yet realistic training experience.

“High-quality training ammunition is essential to the warfighter, who must be prepared to react decisively on today's battlefield,” said Dan Olson, Vice President and General Manager for the Armament Systems Division of Orbital ATK’s Defense Systems Group. “By leveraging our expertise in tactical ammunition, we have produced training rounds that are visually and ballistically similar to their counterpart tactical rounds while meet-ing the reliability and safety performance requirements for use on U.S. and European ranges.”

The contracts include production of new M1002 and M724A2 rounds to fill inventories and the recapitalization of existing M865 and M1002 rounds to extend their service life.

Orbital ATK has delivered nearly 5 million rounds of large caliber tactical and training tank ammunition to the U.S. Army, U.S. Marine Corps and allied militaries over the years. Through its proven, system-level contracting approach that reduces the risk to the customer, Orbital ATK has delivered a constant supply of ammunition that is con-sistently reliable and affordable.

Orbital ATK’s Defense Systems Group is an industry leader in providing innovative and affordable precision and strike weapons, advanced propulsion and hypersonics, mis-sile components across air-, sea- and land-based systems, ammunition and related energetic products.

About Orbital ATK

Orbital ATK is a global leader in aerospace and defense technologies. The company designs, builds and delivers space, defense and aviation systems for customers around the world, both as a prime contractor and merchant supplier. Its main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; sat-ellites and associated space components and services; and advanced aerospace struc-tures. Headquartered in Dulles, Virginia, Orbital ATK employs approximately 12,500 people in 18 states across the U.S. and in several international locations. For more in-formation, visit www.orbitalatk.com.

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Media Contact
Bryan Kidder
(410) 864-4932
bryan.kidder@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com
Media Contact
 Kidder
(410) 864-4932
bryan.kidder@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com