Alliant Techsystems (NYSE: ATK) will webcast the remarks of its Chairman and CEO, Mr. Dan Murphy, at the company’s Investor Conference on Friday, November 10. The conference will begin at 8:00 a.m. Eastern Time and is scheduled to conclude at 12:30 p.m. In addition to Mr. Murphy, the webcast will include remarks from other senior company executives.

Access to the audio-only webcast will be available at: http://www.atk.com/investorrelations/ . A replay of the webcast will be available on the company’s website within 24 hours after the presentation and will remain on the site for 30 days.

ATK is a $3.4 billion advanced weapon and space systems company employing approximately 15,000 people in 22 states. News and information can be found at http://www.atk.com .

Media Contact:

Bryce Hallowell
Phone: 952-351-3087
E-mail: bryce.hallowell@atk.com

Investor Contact:

Steve Wold
Phone: 952-351-3056
E-mail: steve.wold@atk.com