Abstract: A rear-sight aiming device to aid a shooter of a firearm. The device includes a housing with a tunnel alignable with the front aiming sight; an elongated optical fiber in a non-linear configuration is disposed inboard within the tunnel; an annular light-transmitting cylinder, disposed within the tunnel between the optical fiber and the shooter of the firearm during shooting; and a self-activating light source coaxially and completely disposed within the cylinder.

Abstract: A rear-sight aiming device to aid a shooter of a firearm. The device includes a housing with a tunnel alignable with the front aiming sight; an elongated optical fiber in a non-linear configuration is disposed inboard within the tunnel; an annular light-transmitting cylinder, disposed within the tunnel between the optical fiber and the shooter of the firearm during shooting; and a self-activating light source coaxially and completely disposed within the cylinder.

Abstract: A rear-sight aiming device to aid a shooter of a firearm. The device includes a housing with a tunnel alignable with the front aiming sight; an elongated optical fiber disposed inboard within the tunnel; an annular light-transmitting cylinder, disposed within the tunnel between the optical fiber and the shooter of the firearm during shooting; and a self-activating light source coaxially and completely disposed within the cylinder.

Abstract: A firearm aiming device and attachment mechanism is an aiming device or gun sight for firearms and an attachment mechanism therefor. The aiming device and attachment mechanism are particularly useful for aiming/using hand-held guns, such as pistols and revolvers or short range rifles. In accordance with embodiments of one aspect of the present invention there is provided an aiming device to aid a shooter of a firearm having a barrel, an aiming device attachment member receiving slot of the tapering type, and a front aiming sight. The aiming device includes an elongated housing having a tunnel therein, the tunnel configured so it is parallely arrangeable with the firearm's barrel and alignable with the front sight. The housing has at least one light admitting opening to the tunnel and an inwardly tapering groove that is generally crosswise to the longitudinal axis of the elongated housing.