| 摘要 |
A sight apparatus comprising a mount, and a sight mechanism, which may be removable. The sight mechanism including a proximal end and a distal end bounding a central portion, which may be enlarged. The sight mechanism set in a position within the mount via contact with the central portion. The sight mechanism including a circular aperture passing through the proximal end, the central portion, and the distal end of the sight mechanism. An interchangeable proximal circular member may be attached to the proximal end of the sight mechanism, and an interchangeable distal circular member may be attached to the distal end of the sight mechanism.
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