| 摘要 |
An adjustable rear sight (10) for a firearm, said firearm being of the type that has a front, a rear, a top, a bottom, a front sight, and right and left sides with a width therebetween, and the firearm having a frame and a barrel with a longitudinal axis. The firearm's top has a mounting groove that extends transversely across a major portion of the firearm for receiving a rear sight. The adjustable rear sight includes a rigid base (12) having a lower portion (16) and an upper portion (18). The lower portion (16) is shaped and sized to fit snuggly within the firearm's mounting groove. The base's upper portion (18) is shaped and sized to extend above the top of the firearm to provide the protection of a combat sight. The rear sight also has a central structural element (14) that is mounted for up and down movement with respect to the rigid base (12). |
