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NEW YORK ( TheStreet) -- Alliant Techsystems (NYSE: ATK) hit a new 52-week low Friday as it is currently trading at $47.90, below its previous 52-week low of $48 with 144,507 shares traded as of 3:20 p.m. ET. Average volume has been 347,500 shares over the past 30 days. Alliant Techsystems has a market cap of $1.65 billion and is part of the industrial goods sector and aerospace/defense industry. Shares are down 14.4% year to date as of the close of trading on Thursday. Alliant Techsystems Inc. engages in the supply of aerospace and defense products to the U.S. government, allied nations, and prime contractors. The company also supplies ammunition and related accessories to law enforcement agencies and commercial customers. The company has a P/E ratio of 6.3, equal to the average aerospace/defense industry P/E ratio and below the S&P 500 P/E ratio of 17.7.