gunsight(n = noun.artifact) gun-sight - a sight used for aiming a gun;
is a kind of sights
is a part of gun
has parts: finder, view finder, viewfinder
has particulars: battle sight, battlesight, open sight, panoramic sight, peep sight, sight setting, telescope sight, telescopic sight

   A sight{9} attached to a gun, used for aiming it at the target. Same as sight{9}. [WordNet 1.5]