ramp sight

ramp sight

[′ramp ‚sīt]
(ordnance)
Type of metallic gun sight in which the aperture is raised or lowered by moving it forward or backward on an inclined ramp.
References in periodicals archive ?
The action is totally tuned, trigger pull set at just a hair over 3 pounds, Bisley hammer and frame color cased by Turnbull, steel ejector-rod housing installed, oversized locking base pin fitted and a BCA heavy-duty rear field sight matched up with a serrated front ramp sight.
The sighting system for the EAGLE can be either an iron ramp sight or a fast acquisition EoTech Holographic GL sight, both of which are mounted on a rail above the launcher.