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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 US Armed Forces designates version 2 as MTWS (Medium Thermal Weapon Sight), and version 3 as HTWS (Heavy Thermal Weapon Sight). [4] A new variation, the AN/PAS-13G LWTS model, is much smaller and compact making it easier to use on the M16/M4 family of rifles. It is also designed to be used with the ACOG, and M68 Close Combat Optic. [5]
Unertl Optical Company, Inc. was a manufacturer of telescopic sights in the United States from 1928 until 2008. They are known for their 10× fixed-power scopes that were used on the Marine Corps' M40 rifle and made famous by Marine Corps Scout Sniper Carlos Hathcock during the Vietnam War.
The optics are considered exceptional, even by contemporary standards and the biggest drawback compared to modern scopes is the weight. Although the AN/PVS-4 has not had a great deal of cultural impact, its legacy of high quality night vision has become a staple of movies and television shows which often do not show real equipment.
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]
The thermographic camera on a Eurocopter EC135 helicopter of the German Federal Police AN/PAS-13 thermal rifle scope mounted on an AR-15 rifle. Thermography is often used in surveillance, security, firefighting, law enforcement, and anti-terrorism: [35] Quarantine monitoring of visitors to a country; Technical surveillance counter-measures
An M16A1 rifle fitted with the AN/PVS-2 Starlight scope First-generation passive devices developed by the US Army in the 1960s were introduced during the Vietnam War . They were an adaptation of earlier active technology and relied on ambient light instead of using an extra infrared light source.
12× Pulsar Trail XP-50 Thermal Sight (800 m (2,600 ft) range) 10× Pulsar Trail XP-30 Thermal Sight (500 m (1,600 ft) range) The Precision Shoulder-fired Rocket Launcher-1 also known as the ( PSRL-1 ) is a modified American copy of the Soviet /Russian RPG-7 shoulder-fired rocket-propelled grenade launcher developed by AirTronic USA.