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Exhibit 21

Subsidiaries of Alliant Techsystems Inc.
as of March 31, 2008

        All subsidiaries listed below are 100% owned except where noted.

Subsidiaries			State of Incorporation or Organization
• ATK Commercial Ammunition Holdings Company Inc.			Delaware
	• ATK Commercial Ammunition Company Inc.		Delaware
		• Federal Cartridge Company	Minnesota
		• Ammunition Accessories Inc.	Delaware
• ATK Launch Systems Inc.			Delaware
• Micro Craft Inc.			Minnesota
• ATK Space Systems Inc.			Delaware
	• Swales & Associates, Inc.		Delaware
	• COI Ceramics, Inc. (59% ownership)		California
• ATK Insurance Company			Vermont

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Exhibit 21

Subsidiaries of Alliant Techsystems Inc. as of March 31, 2008