ATK Announces Leadership Changes

General Ronald Fogleman to Serve as Chairman of the Board of Directors and
John Shroyer to Serve as Interim CEO

MINNEAPOLIS, Nov. 11 /PRNewswire-FirstCall/ -- Alliant Techsystems (NYSE: ATK)
today announced that after more than six years as the company's Chairman and
Chief Executive Officer, Daniel J. Murphy will leave the company and retire in
March, 2010. The company's Board of Directors has appointed General Ronald R.
Fogleman to serve as Chairman of the Board of Directors. The Board also
elected John L. Shroyer, ATK's Chief Financial Officer, to serve as Interim
Chief Executive Officer. The appointments are effective immediately.

"General Ron Fogleman has served on ATK's Board of Directors for more than
five years. He has extensive leadership experience in the aerospace and
defense industry, not only as an executive, but also as Chief of Staff for the
U.S. Air Force and member of the U.S. Joint Chiefs of Staff. His judgment and
business acumen will help guide the Company into the future, and we are
confident that he will be an outstanding Chairman of the Board for ATK," said
ATK Board member William Van Dyke, on behalf of the Company's Board of
Directors.

"We are fortunate to have such a deep bench of executive talent at ATK," Van
Dyke continued. "John Shroyer, a 23 year veteran of the company, will serve
as interim CEO and we appreciate the continued strong leadership of the
Company's three division presidents: John Cronin, President of ATK Mission
Systems; Mark DeYoung, President of ATK Armament Systems; and Blake Larson,
President of ATK Space Systems.

"The Board of Directors wants to acknowledge and thank Dan Murphy for his many
contributions to the company and for his accomplished leadership. ATK has
transformed into a leading aerospace and defense firm under his leadership.
We wish him all the best in his future endeavors," concluded Van Dyke.

Dan Murphy stated, "It has been a great honor to serve ATK as Chairman and
CEO. I am leaving the company to address family matters that require my
personal attention. This is an extraordinary company with committed and
hard-working employees, and I am confident that ATK will continue to deliver
solid results as it maintains and builds on its strong competitive position in
the months and years ahead."

The Board has retained a leading executive search firm to assist in
identifying internal and external candidates from which to select a new Chief
Executive Officer.

2nd quarter FY10 earnings information
ATK will webcast its investor conference call on fiscal year 2010
second-quarter financial results on November 12 at 10:00 a.m. Eastern Time.
The call will discuss ATK's quarterly financial performance, as well as
financial guidance and trend information for future period results.

Biographies
General Ronald R. Fogleman joined ATK's Board in May of 2004. Since retiring
from the U.S. Air Force in 1997 as the fifteenth Chief of Staff of the U.S.
Air Force and a member of the Joint Chiefs of Staff, he has served on the
boards of several public companies. He served as the non-executive Chairman
of the Board of World Airways from 2003 until 2007, and is currently a
director of AAR Corp., the Alpha Security Group Corporation, and a privately
held company, Atlantic Inertial Systems. General Fogleman has also remained
actively engaged in national security affairs having served on numerous
congressionally-directed commissions and study groups to include the Defense
Policy Board.

John L. Shroyer has held his present position since April 2006. From November
2005 to April 2006, he served as Vice President, Operations. He served as
Vice President and General Manager, ATK Ordnance Systems from 2004 to November
2005. From 2002 to 2004, he was President of ATK Tactical Systems. He was
Vice President, ATK Tactical Systems from 2001 to 2002, and Vice President and
Treasurer, ATK Tactical Systems, from 2000 to 2001.

ATK is a premier aerospace and defense company with more than 18,000 employees
in 22 states, Puerto Rico and internationally, and revenues of approximately
$4.8 billion. News and information can be found on the Internet at
www.atk.com.

Media Contact: Investor Contact:

Bryce Hallowell Jeff Huebschen
Phone: 952-351-3087 Phone: 952-351-2929
E-mail: bryce.hallowell@atk.com E-mail: jeff.huebschen@atk.com

SOURCE ATK

Media, Bryce Hallowell, +1-952-351-3087, bryce.hallowell@atk.com, or
Investors, Jeff Huebschen, +1-952-351-2929, jeff.huebschen@atk.com, both of
ATK