Orbital ATK Demonstrates MK44 Bushmaster Chain Gun in 30mm and 40mm Configurations

Company’s Advanced Ammunition Initiative Making Rapid Progress

Demonstration to be Featured on Outdoor Channel’s “GunnyTime with R. Lee Ermey”

Dulles, Virginia 27 June 2017 -- Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, provided its customer and partner base a live demonstration of its MK44 Bushmaster® Chain Gun® firing a variety of both 30mm and 40mm ammunition during the company’s Bushmaster User Conference at Big Sandy Range, Arizona. The gathering of domestic and international attendees watched as the MK44 guns hit targets before and after a rapid changeover from a 30mm to a 40mm configuration. The MK44 Chain Gun will be featured  on the 2017 season premiere episode of “GunnyTime with R. Lee Ermey” on Outdoor Channel beginning Wednesday, June 28, featuring Ermey firing the MK44 Chain Gun with Orbital ATK’s 30mm and 40mm Airbursting Ammunition.

“The MK44 is quickly becoming the most sought after medium-caliber cannon,” said Dan Olson, Vice President and General Manager of the Armament Systems Division of Orbital ATK’s Defense Systems Group. “Today’s battlefield call for greater standoff and increased firepower is driving new combat vehicle platforms to include larger guns and advanced ammunition types. The same is true for upgrade programs.”

Attendees of the live-fire demonstration saw the MK44 Chain Gun, mounted to a Kongsberg Protector Turret and General Dynamics Land Systems Light Armored Vehicle, engage a variety of adobe, concrete block and steel panel targets in 30mm configuration using high-explosive incendiary ammunition. Additionally, the MK44 was set up with Orbital ATK’s proprietary air-bursting munition fuze-setting equipment to demonstrate the gun’s ability to precisely fire several rounds in rapid succession with point-bursting accuracy, both horizontally and vertically across the target.

In addition to the air-bursting capability, Orbital ATK is developing other precision technologies for its medium-caliber ammunition, including proximity detonating and command guidance that are compatible with its medium-caliber cannons. These two new advanced capabilities will be demonstrated at the Bushmaster Users Conference in 2018 and 2019, respectively.

The MK44 Bushmaster Chain Gun is available new as a 30mm or 40mm weapon. At the completion of the 30mm demonstration, the system was easily “upgunned” in about an hour’s time and readied to fire 40mm ammunition. The demonstration in the 40mm configuration showed the increased firepower that the 40mm cannon and ammunition provided engaged against similar target panels. The weapon also fired Orbital ATK’s newly developed 40mm Programmable Air Burst Munitions (PABM) with dramatic effects on a replicated target set in a combat-defilade position.

Industry partners General Dynamics Land Systems, Kongsberg and Orbital ATK are upgrading the U.S. Army’s Second Cavalry Regiment’s Stryker fleet with a similar system integrating the Protector MCT-30 turret and a variant of the MK44 30mm Bushmaster Chain Gun, designated the XM813. Once fielded, the complete Stryker system will offer combat crews greater protection as they will be able to fight under armor with a leap ahead in firepower, reliability and effectiveness through the addition of a vehicle main gun.

Orbital ATK is developing and qualifying an entire Super 40mm family of ammunition to include Target Practice with Tracer, High Explosive Incendiary with Tracer and an Armor Penetrating Fin Stabilized Discarding Sabot with Tracer round, as well as the PABM showcased during the Bushmaster User Conference.

Orbital ATK’s Defense Systems Group is an industry leader in providing innovative and affordable precision and strike weapons, advanced propulsion and hypersonics, missile 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; satellites and associated space components and services; and advanced aerospace structures. 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 information, visit www.orbitalatk.com.

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Media Contact
Jarrod Krull
(763) 744-5371
jarrod.krull@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com
Media Contact
 Krull
(763) 744-5371
jarrod.krull@orbitalatk.com
Investor Contact
Barron Beneski
(703) 406-5528
barron.beneski@orbitalatk.com