Exhibit 12.1

Alliant Techsystems Inc.
Statement Re: Computation of Ratio of Earnings to Fixed Charges
(Dollars in thousands)
	Fiscal Year Ended March 31,															3 months ended
	2013			2012			2011			2010			2009			Q1 FY14 - 6/30/2013			Q1 FY13 - 7/1/2012
Earnings:
Income before income taxes and noncontrolling interest	$	392,484		$	406,966		$	438,674		$	435,417		$	298,049		$	125,625		$	130,688
Plus fixed charges		78,579			102,495			100,475			88,932			98,207			17,149			22,979
Earnings	$	471,063		$	509,461		$	539,149		$	524,349		$	396,256		$	142,774		$	153,667
Fixed Charges:
Interest expense, including    amortization of debt issuance costs	$	65,924		$	89,296		$	87,612		$	77,494		$	87,313		$	13,890		$	19,815
Estimated interest factor of rental    expense		12,655			13,199			12,863			11,438			10,894			3,259			3,164
Fixed Charges	$	78,579		$	102,495		$	100,475		$	88,932		$	98,207		$	17,149		$	22,979
Ratio of Earnings to Fixed Charges(1)		5.99			4.97			5.37			5.90			4.03			8.33			6.69
Rent expense		79,093			82,494			80,391			71,486			68,086			20,366			19,773	**
Percent of rent expense that    represents interest		16	%		16	%		16	%		16	%		16	%		16	%		16	%
(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.
** Approximates quarterly rent