collimating sight

collimating sight

[′käl·ə‚mād·iŋ ‚sīt]
(ordnance)
Sight equipped with a collimator, set parallel with the axis of the bore of the gun in horizontal direction, but adjustable in elevation, so that it can be kept focused on an aiming point while the gun is raised or lowered.
References in periodicals archive ?
collimating sight infrared point shooting with arms - 300 pieces.