gunsight

Noun

 * 1) An optical instrument which establishes an optical line or axis for the purpose of aiming a weapon.

Translations

 * Chinese:
 * Mandarin: 瞄準具,
 * Czech: zaměřovač
 * Dutch:
 * French:
 * German:
 * Japanese: 照準器, 照準具,
 * Polish:
 * Russian: