A small metal knob on the muzzle of a firearm, such as a rifle, used for sighting.
A small metal knob on the muzzle of a firearm, such as a rifle, used for sighting.
准星枪炮口上，瞄准用的小圆金属突起，如来福枪上的准星
A small metal knob on the muzzle of a firearm, such as a rifle, used for sighting.
准星枪炮口上，瞄准用的小圆金属突起，如来福枪上的准星