ATK to Announce Third Quarter Fiscal Year 2013 Financial Results

       ATK to Announce Third Quarter Fiscal Year 2013 Financial Results

PR Newswire

ARLINGTON, Va., Jan. 15, 2013

ARLINGTON, Va., Jan. 15, 2013 /PRNewswire/ --ATK (NYSE: ATK) will webcast its
investor conference call on fiscal year 2013 third quarter financial results,
which will be announced Feb. 5, prior to the opening of the market. In
addition to discussion of the quarterly results, the Company expects to
discuss its outlook and financial guidance and may discuss matters of strategy
during the call. Conference call details are as follows:

This call is being webcast by CCBN and can be accessed at ATK's web site
http://www.atk.com/investor-information/webcasts/. Information about
downloading Windows Media Player software, which is required to access the
webcast, will be available on the website.

When: 9:00 a.m. EST, Tuesday, Feb. 5, 2013
Who: Mark DeYoung, President and Chief Executive Officer
      Neal Cohen, Executive Vice President and Chief Financial Officer
      Steve Wold, Vice President, Investor Relations and Corporate Finance

Telephone recording: For those who cannot participate in the live webcast, a
telephone recording of the conference call will be available. The telephone
number is 719-457-0820, and the confirmation code is 7591483. The recording
will be available for one month after the call.

Institutional investors can access the call via CCBN's password-protected
event management site, StreetEvents (www.streetevents.com).

ATK is an aerospace, defense, and commercial products company with operations
in 21 states, Puerto Rico, and internationally. News and information can be
found on the Internet at www.atk.com.

Media Contact:                     Investor Contact:
Amanda Covington                   Steve Wold
Phone: 703-412-3231                Phone: 952-351-3056
E-mail: amanda.covington@atk.com  E-mail: steve.wold@atk.com

SOURCE ATK

Website: http://www.atk.com