| 摘要 |
When aiming using an aperture front sight, the white surface (which surrounds the firing disc mirror) frequently leads to dazzling of the person firing and hence to aiming errors. In addition, as a result of the bars which are generally provided in such a sight, lead away from the aperture front sight (which is in the form of a circular ring) and make it possible to monitor the horizontal position of the weapon, a part of the target field is covered. In order to overcome these disadvantages, it is proposed to fit a disc consisting of optically polarising material around the aperture front sight, from which disc bars which lead away can be fitted, possibly likewise consisting of optically polarising material, this disc preventing the dazzling by the light reflecting the white surface. <IMAGE>
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