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ALLIANT TECHSYSTEMS INC.

DEFINED CONTRIBUTION SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

First Effective January 1, 2007

Statement of Plan

ALLIANT TECHSYSTEMS INC., a Delaware corporation (hereinafter, the “Company”), hereby creates a nonqualified, unfunded, deferred compensation plan for the benefit of a select group of management and highly compensated employees whose non-elective contributions for a Plan Year under the 401(k) Plan are limited by section 401(a)(17) of the Code or as a result of the Participant’s deferrals under the Nonqualified Deferred Compensation Plan.

The purpose of this Plan is to provide specified benefits to a select group of management or highly compensated Employees who contribute materially to the continued growth, development and future business success of the Company and its subsidiaries.  This Plan is nonqualified and unfunded for tax purposes and for purposes of Title I of ERISA.

ARTICLE 1

Definitions

For the purposes of this Plan, unless otherwise clearly apparent from the context, the following phrases or terms shall have the following indicated meanings:

1.1                                 “Account Balance” shall mean, with respect to a Participant, an entry on the records of the Employer equal to the sum of the Participant’s Annual Accounts. The Account Balance shall be a bookkeeping entry only and shall be utilized solely as a device for the measurement and determination of the amounts to be paid to a Participant, or his or her designated Beneficiary, pursuant to this Plan.

1.2                                 “Administrator” shall mean the Company, the Committee, and any person or committee of persons responsible for performing administrative functions under this Plan.

1.3                                 “Annual Account” shall mean, with respect to a Participant, an entry on the records of the Employer equal to the following amount: (i) the sum of the Participant’s Company Contribution Amount for any one Plan Year, plus (ii) amounts credited or debited to such amounts pursuant to this Plan, less (iii) all distributions made to the Participant or his or her Beneficiary pursuant to this Plan that relate to the Annual Account for such Plan Year.  The Annual Account shall be a bookkeeping entry only and shall be utilized solely as a device for the measurement and determination of the amounts to be paid to a Participant, or his or her designated Beneficiary, pursuant to this Plan.

1.4                                 “Beneficiary” shall mean one or more persons, trusts, estates or other entities, designated in accordance with Article 5, that are entitled to receive benefits under this Plan upon the death of a Participant.

1.5                                 “Beneficiary Designation Form” shall mean the form established from time to time by the Senior Vice President of Human Resources that a Participant completes, signs and returns to the Company to designate one or more Beneficiaries.

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1.6                                 “Benefit Distribution Date” shall mean the date that triggers distribution of a Participant’s vested Account Balance.  A Participant’s Benefit Distribution Date shall be the earliest to occur of any one of the following:

(a)                                  If the Participant experiences a Termination of Employment, his or her Benefit Distribution Date shall be the later of (i) the first day of the seventh month following the month in which the Participant experiences a Termination of Employment or (ii) the January 31 of the calendar year following the calendar year in which the Participant experiences a Termination of Employment; or

(b)                                 As soon as administratively practicable after the Company is provided with proof that is satisfactory to the Senior Vice President of Human Resources of the Participant’s death, if the Participant dies prior to the complete distribution of his or her vested Account Balance.

1.7                                 “Board” shall mean the board of directors of the Company.

1.8                                 “Claimant” shall have the meaning set forth in Section 11.1.

1.9                                 “Code” shall mean the Internal Revenue Code of 1986, as amended from time to time.

1.10                           “Committee” shall mean the Personnel and Compensation Committee (also k