G
o
o
g
l
e
×
Please click
here
if you are not redirected within a few seconds.
All
Images
Videos
News
Maps
Shopping
Books
Search tools
Any time
Any time
Past hour
Past 24 hours
Past week
Past month
Past year
All results
All results
Verbatim
Sight
Device
A sight or sighting device is any device used to assist in precise visual alignment of weapons, surveying instruments, aircraft equipment, optical illumination equipment or larger optical instruments with the intended target.
Wikipedia