| 摘要 |
A fast sighting device adapted for convenient substitution in place of a conventional rear rifle sight comprising a rectangular support including a ceramic magnet supported on an eccentric cam on the interior thereof. A support further includes a front and rear locating pin, the front pin being disposed for longitudinal translation within an elongate opening, said front and rear pins being dimensioned to accommodate the conventional mounting holes for the substituted sight. Extending from the rear end of the support is a circular, vertically aligned, sight orifice, threaded on the interior over the rear segment thereof for receiving a retainer cap compressing a sight disc or other sighting device therebetween. It is intended to form the support and the sight aperture from a nonmagnetic material such as plastic, the disposition of the ceramic magnetic therein being adjustable by the eccentric cam to achieve either a contiguous alignment with the rifle barrel or a separated alignment for removal.
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