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A thermographic weapon sight, thermal imagery scope or thermal weapon sight is a sighting device combining a compact thermographic camera and an aiming reticle. [1] They can be mounted on a variety of small arms as well as some heavier weapons. [2] As with regular ultraviolet sensors, thermal weapon sights can operate in total darkness.
The AN/PAS-13B thermal weapon sight (TWS) is an infrared sight developed for the United States military by Raytheon. The sight is designed for use on small arms in the U.S. military's inventory, but it can also be used as a standalone observation device. The AN/PAS-13B uses thermal imaging so that it can be used day or night. Thermal imaging ...
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
Leupold and Stevens Mark 6 scope with variable magnification 3-18x44mm, mounted on a M24 SWS. IDF M24 SWS with Leupold Mark 6 3-18x44mm sniper scope. Leupold FX-II Ultralight scope on a Ruger 77/44. The company's riflescopes are used by organizations such as the United States Army, the Secret Service and the Navy SEALs. [13]
Among scopes for rail mounts, the 22.5-degree V-shaped Zeiss rail is the most prevalent standard. It was introduced in 1990. After the patent expired in 2008, compatible scopes have been offered from manufacturers such as Blaser, [1] Leica, Minox, Meopta, Nikon, [2] Noblex (formerly Docter [3]), Schmidt & Bender [4] and Steiner. [5]
The first defect was "thermal drift", which causes the aiming point to shift in high or low temperatures by as much as 12" at 300 yards. The second was "moisture incursion" or "reticle fade", which causes the viewing glass to fog up and the aiming point to lose brightness. [6] L-3 settled for $25.6 million and fixed the "moisture incursion" defect.
The telescopic sight proprietary mount is adjustable for tension on the SVD rifle's side rail scope mount. This side rail is a type of dovetail rail known as the Warsaw Pact rail, which has cut-out portions to reduce weight and allow easier installation. The side rail mount is an offset mounting that positions the PSO-1 telescopic sight axis to ...
The scope base is the attachment interface on the rifle's receiver, onto which the scope rings or scope mount are fixed. Early telescopic sights almost all have the rings that are fastened directly into tapped screw holes on the receiver, hence having no additional scope base other than the receiver top itself.