| 摘要 |
<p>An optical accessory (10) including a first attachment device (20) for mounting another optical accessory thereto, the first attachment device including a mounting rail (20), which may be formed with grooves (22). The optical accessory may further include a second attachment device (28) adapted to be attached to a mounting rail external to the optical accessory. The optical accessory may include a flashlight.</p> |
