An open sight for use on weapons such as handguns is disclosed. The open sight features two rear aiming marks mounted in the rear sight and a third aiming mark in the front sight. The aiming marks are illuminated by one or more artificial light sources disposed within the rear sight. The artificial light sources project light forward to the front sight and illuminate the rear aiming marks. The front sight is dimensioned to substantially block the forward directed beam to reduce the visibility of the illumination forward of the weapon.

A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.

A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.

A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.

A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.

A rear sight is provided for use on a firearm. The rear sight includes a rear sight blade connected to a mounting base. The mounting base is configured to be connected to a top surface of the firearm. The blade includes a sighting notch positioned to be aligned with a post on a front sight. The width of the sighting notch is variable. The rear sight is configured to be provided with a second sighting notch integrated within the rear sight and which is configured to move between a first position and a second position.

A rear sight is provided for use on a firearm. The rear sight includes a rear sight blade connected to a mounting base. The mounting base is configured to be connected to a top surface of the firearm. The blade includes a sighting notch positioned to be aligned with a post on a front sight. The width of the sighting notch is variable. The rear sight is configured to be provided with a second sighting notch integrated within the rear sight and which is configured to move between a first position and a second position.

A firearm sight assembly comprises a rear base. The firearm sight assembly comprises a rear sight element movable with respect to the rear base between a lowered condition and an elevated condition. The rear sight element has a first pair of upwardly projecting first rear posts defining a first notch therebetween when in the lowered condition. The rear sight element has a second pair of upwardly projecting second rear posts defining a second notch therebetween when in the elevated condition. The first rear posts extend to a first height above the rear base, and the second rear posts extend to a second height above the rear base. The second height is greater than the first height.

A firearm sight assembly comprises a rear base. The firearm sight assembly comprises a rear sight element movable with respect to the rear base between a lowered condition and an elevated condition. The rear sight element has a first pair of upwardly projecting first rear posts defining a first notch therebetween when in the lowered condition. The rear sight element has a second pair of upwardly projecting second rear posts defining a second notch therebetween when in the elevated condition. The first rear posts extend to a first height above the rear base, and the second rear posts extend to a second height above the rear base. The second height is greater than the first height.

A collapsible reflective optical sight for a firearm, including a base configured to mount the collapsible reflective optical sight to a firearm; a lens attached to and able to rotate with respect to the base, wherein the lens includes an optic with a reflective surface, and the lens is able to be folded with respect to the base to store the lens in a collapsed configuration and is able to be angled with respect to the base to aim the firearm with the lens in a deployed configuration; a light source on the base that reflects a light off the reflective surface of the optic to aim the firearm; and a mechanical sight adjustably mounted to the base to aim the firearm. Additionally, the collapsible reflective optical sight can include a firearm and a hood.