Exhibit 12.1

Alliant Techsystems Inc.

Statement Re: Computation of Ratio
of Earnings to Fixed Charges

(dollars in thousands)

	Nine Months Ended						Fiscal Year Ended March 31,
	January 1, 2006			January 2, 2005			2005			2004			2003			2002			2001
Earnings:
Income from operations before taxes	$	185,845		$	154,309		$	220,540		$	217,796		$	197,477		$	121,334		$	103,394
Plus fixed charges	57,358			53,889			73,201			67,223			85,087			108,207			36,736
Earnings	$	243,203		$	208,198		$	293,741		$	285,019		$	282,564		$	229,541		$	140,130
Fixed Charges:
Interest expense, including amortization of debt issue costs	$	51,703		$	48,024		$	65,382		$	60,327		$	79,495		$	103,547		$	33,738
Estimated interest factor of rental expense	5,655			5,865			7,819			6,896			5,592			4,660			2,998
Fixed Charges	$	57,358		$	53,889		$	73,201		$	67,223		$	85,087		$	108,207		$	36,736
Ratio of Earnings to Fixed Charges(1)	4.24			3.86			4.01			4.24			3.32			2.12			3.81
Rent expense	35,726			37,047			49,396			43,563			35,326			29,437			16,658
Percent of rent expense that represents interest	16		%	16		%	16		%	16		%	16		%	16		%	18		%

(1)For purposes of calculating the ratio of earnings to fixed charges, “earnings” represents income from continuing operations before income taxes, plus fixed charges.  “Fixed charges” consist of interest expense, including amortization of debt issuance costs and that portion of rental expense considered to be a reasonable approximation of interest.