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Iron sights are a system of physical alignment markers used as a sighting device to assist the accurate aiming of ranged weapons such as firearms, airguns, crossbows, and bows, or less commonly as a primitive finder sight for optical telescopes. Iron sights, which are typically made of metal, are the earliest and simplest type of sighting device.
Trijicon specializes in self-luminous optics and night sights, mainly using the low-energy tritium illumination, light-gathering fiber optics and battery-powered LED. [1] [2] [3] Additionally, Trijicon is a contractor for the United States military and supplies the Advanced Combat Optical Gunsight (ACOG) and RX01 reflex sights.
The Norden could not rotate the sight fast enough for bombing at low altitude, for instance. Typically this was solved by removing the Norden completely and replacing it with simpler sighting systems. [43] A good example of its replacement was the refitting of the Doolittle Raiders with a simple iron sight.
Most ACOG models, when mounted to a carry handle, have an open space through the mount to allow the use of the rifle's iron sights without removing the scope. [citation needed] Others include Docter or Trijicon [10] reflex sights mounted on top, such as the TA11SDO (SU-258/PVQ) and the TA648MGO (SU-260P). [11]
On weapons, these sights are usually formed by rugged metal parts, giving them the name "iron sights", [4] as distinct from optical or computing sights. [5] On many types of weapons they are built-in and may be fixed, adjustable, or marked for elevation , windage , target speed, etc. [ 3 ] They are also classified in forms of notch (open sight ...
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It was noted soon after its invention that the sight could be a good alternative to iron sights and also had uses in surveying and measuring equipment. [11] The reflector sight was first used on German fighter aircraft in 1918 [12] [13] and widely adopted on all kinds of fighter and bomber aircraft in the 1930s. By World War II the reflector ...
The cassowary looks like a relic from another geologic era – it’s as tall as a person, has glossy black feathers and piercing eyes, walks on two feet, can weigh up to 140 pounds, and has a ...
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