Northrop Grumman Corp. said late Wednesday that it has sold its night vision systems business to L-3 Communications Holdings Inc. for $175 million in cash.

Northrop's Electro-Optical Systems business provides night vision goggles, weapons sights and other equipment to the military and public safety customers. The business, in Garland, Texas, had about $190 million in sales last year. The deal is expected to close in the second quarter.

Shares in Northrop closed down 55 cent to $78.80 Thursday.

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