ATK Marks 30 Years of Tank Ammunition Innovation

ATK Delivered Four Million Tank Rounds Since 1979

MINNEAPOLIS, Oct. 5 /PRNewswire-FirstCall/ -- Alliant Techsystems (NYSE: ATK)
is marking its 30th year as an innovative developer and producer of tank
ammunition for the U.S. Army and its allies. In 1979, the company became a
systems integrator for tank ammunition when the U.S. Army sought to "upgun"
the M1 Abrams Main Battle Tank (MBT) from a 105mm system to a 120mm main gun.
Thirty years and nearly four million rounds later, ATK continues to pioneer
developments in the design and production of world-class tactical and training
tank ammunition. In total, ATK has type-classified ten U.S. Army 120mm rounds
as a systems integrator.

"ATK is meeting the evolving needs of the warfighter by delivering
world-class, large-caliber, direct-fire ammunition to U.S. and allied troops,"
said Bruce DeWitt, vice president and general manager for ATK Advanced
Weapons. "Our design and production capabilities allow us to rapidly field
the highest quality rounds in the quantities required to meet urgent needs
while also ensuring that the munitions are affordable for our expanding
customer base."

In 1979, ATK was awarded a technology transfer program for Rheinmetall's 120mm
smooth bore technology for the U.S. Army's Abrams tank main gun upgrade. This
effort resulted in the successful type classification of four rounds: the M829
Kinetic Energy (KE) tactical, the M865 KE trainer, the M830 High Explosive
Antitank (HEAT) tactical, and the M831 HEAT training round. These
systems-managed programs were the first for U.S. Army large caliber ammunition
procurements.

ATK also developed and produced the M830A1 High Explosive Antitank -
Multi-Purpose with Tracer (HEAT-MP-T) round. This innovative round increased
the accuracy and firepower of the Abrams MBT to not just enhance its ability
to defeat enemy armored vehicles at extended ranges, but also give the Abrams
the ability to engage helicopter threats and destroy bunkers.

"As worldwide threats continue to emerge and evolve, meeting today's
challenges with the future in mind is critical," said DeWitt. "ATK takes pride
in its ability to improve existing platform capabilities through innovative,
cost-effective solutions."

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.

Certain information discussed in this press release constitutes
forward-looking statements as defined in the Private Securities Litigation
Reform Act of 1995. Although ATK believes that the expectations reflected in
such forward-looking statements are based on reasonable assumptions, it can
give no assurance that its expectations will be achieved. Forward-looking
information is subject to certain risks, trends and uncertainties that could
cause actual results to differ materially from those projected. Among those
factors are: the challenges of developing advanced tank ammunition; changes in
governmental spending, budgetary policies and product sourcing strategies; the
company's competitive environment; the terms and timing of awards and
contracts; and economic conditions. ATK undertakes no obligation to update
any forward-looking statements. For further information on factors that could
impact ATK, and statements contained herein, please refer to ATK's most recent
Annual Report on Form 10-K and any subsequent quarterly reports on Form 10-Q
and current reports on Form 8-K filed with the U.S. Securities and Exchange
Commission.

Media Contact: Investor Contact:

Rod Gibbons Jeff Huebschen
Phone: 410-864-4932 Phone: 952-351-2929
E-mail: rod.gibbons@atk.com E-mail: jeff.huebschen@atk.com

SOURCE ATK

Rod Gibbons, +1-410-864-4932, rod.gibbons@atk.com, or Investors, Jeff
Huebschen, +1-952-351-2929, jeff.huebschen@atk.com, both of ATK