Definition of "gunsight" [gun•sight]

• An optical instrument which establishes an optical line or axis for the purpose of aiming a weapon (noun)

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• "Markings on the advanced combat optical gunsight, which is standard issue to US special operations forces, include '' JN8: 12, '' a reference to John 8: 12: '' When Jesus spoke again to the people, he said, 'I am the light of the world."
• "I am thinking - honestly - to install sort of a "gunsight" on my A550 to make it work for birds with the 8/500mm."
• "It would be tempting to say -- as many commentators have -- that no connection exists between Loughner's murderous rampage and, for example, the Tea Party's insistence that the tree of liberty must be watered by the blood of tyrants or Sarah Palin's now-infamous map depicting the crosshairs of a gunsight over certain congressional districts, including Gifford's."