Defined  Contribution Supplemental Executive Retirement Plan

Exhibit 10.1





AMENDMENT TO THE

ALLIANT TECHSYSTEMS INC.

DEFINED CONTRIBUTION SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN



Amended as of December 10, 2007





The Alliant Techsystems Inc. Defined Contribution Supplemental Executive Retirement Plan ("Plan") as amended and restated effective October 29, 2007 is hereby amended effective December 10, 2007, to amend the Plan as follows:



I. Section 1.21 is hereby amended to read in its entirety as follows:



1.21 "Investment Election Form" shall mean the form, which may be in electronic format, established from time to time by the Senior Vice President of Human Resources, that a Participant completes, signs and returns to the Company to make an election under the Plan.





II. Section 1.26 is hereby amended to read in its entirety as follows:



1.26 "PIC" shall mean the ATK Pension Investment Committee. "PRC" shall mean the ATK Pension and Retirement Committee.





III. Section 3.4 is hereby amended to read in its entirety as follows:



3.4 Crediting and Debiting of Account Balances . In accordance with, and subject to, the rules and procedures that are established from time to time by the Senior Vice President of Human Resources, amounts shall be credited or debited to a Participant92s Account Balance in accordance with the following rules:



(a) Measurement Funds . The Participant may elect one or more of the measurement funds selected by the PIC, in its sole discretion, which are based on certain mutual funds or other collective investment vehicles (the "Measurement Funds"), for the purpose of crediting or debiting additional amounts to his or her Account Balance. As necessary, the PIC may, in its sole discretion, discontinue, substitute or add a Measurement Fund. Each such action will take effect as of the first day of the first calendar quarter that begins at least 30 days after the day on which the Senior Vice President of Human Resources gives Participants advance written notice of such change. Notwithstanding the above, no Measurement Fund shall be based primarily on common stock or other securities of the Company.



(b) Election of Measurement Funds . A Participant, in connection with his or her initial commenc ...