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The M72 LAW (''Light Anti-Tank Weapon'', also referred to as the ''Light Anti-Armor Weapon'' or ''LAW'') is a portable one-shot 66 mm Anti-tank Weapon , designed in the United States by Talley Defense Systems , produced by Nammo Raufoss AS in Norway . The LAW replaced the Bazooka as the United States Army 's primary Anti-tank weapon after the Korean War . It was intended that it would be replaced in service by the FGR-17 ''Viper'' (which would also replace the FGM-77 ''Dragon'' ), but this program was cancelled and the M136 AT4 was introduced in its place. DESCRIPTION The weapon consists of a Rocket packed inside of a launcher made up of two tubes, one inside the other. While closed, the outer assembly acts as a watertight container for the rocket and the percussion cap-type firing mechanism that activates the rocket. The outer tube contains the trigger, the arming handle, front and rear sights, and the rear cover. The inner tube contains the channel assembly which houses the firing pin assembly, including the detent lever. When extended, the inner tube telescopes outward toward the rear, guided by the channel assembly which rides in an alignment slot in the outer tube's trigger housing assembly. This causes the detent lever to move under the trigger assembly in the outer tube, both locking the inner tube in the extended position and cocking the weapon. Once armed, the weapon is no longer watertight even if the launcher is collapsed into its original configuration. When fired, the propellant in the rocket motor completely combusts before leaving the tip of the launcher, producing gases around 1,400 °F (760 °C). The rocket propels the 66 mm warhead forward without significant recoil. As the warhead emerges from the launcher, six fins spring out from the base of the rocket tube, stabilizing the warhead's flight. Once fired the launcher is no longer useful and may be discarded. Due to the single use nature of the weapon, it was issued as a round of Ammunition by the Canadian Army and the United States Army . AMMUNITION The M72 LAW was issued as a prepackaged round of ammunition. Improvements to the launcher and differences in the ammunition were differentiated by a single designation. The most common M72 LAWs came prepacked with a rocket containing a 66 mm HEAT warhead which is attached to the inside of the launcher by the igniter. The warhead is activated by an impact sense sensor in the nose cone which is connected to the fuse. The fuse then detonates a booster which sets off the main charge. The force of the main charge forces the copper liner into a directional jet that is capable of penetrating up to 0.3 m (1 ft) of Steel Plate , 0.6 m (2 ft) of Reinforced Concrete , or 1.8 m (6 ft) of Soil . A training variant of the M72 LAW, designated the M190, also exists. This weapon is reloadable and uses the 35 mm '''M73''' training rocket. A subcaliber training device that uses a special tracer cartridge also exists for the M72. The US Army tested other 66 mm rockets based on the M54 rocket motor used for the M72, including the '''M74''' and '''XM96'''. These rockets were used with the XM191 and M202 Flash 4 tube launchers. SERVICE HISTORY Although generally thought of as a Vietnam War era weapon which has been superseded by more powerful and sophisticated designs such as the SMAW and AT4 , the M72 LAW has found a new lease of life in the ongoing (2006) operations in Iraq by the US Army and Afghanistan by the Canadian Army. The low cost and light weight of the LAW, combined with a proliferation of lightly-armored targets, make it ideal for the type of urban combat seen in Iraq and Afghanistan. The M72 LAW is also extensively used in the Finnish Army (some 70,000 pieces), where it is known under the designations 66 KES 75 (M72A2) and '''66 KES 88''' (M72A5). The British Army used the Norwegian built version of the M72 under the designation "Rocket 66mm HEAT L1A1" which was replaced by LAW 80 . The Turkish Army uses a Turkish built version by Makina Ve Kimya Endustrisi Kurumu , called HAR-66, which has the performance and characterstics of a mix of M72A2 and A3. Turkey also indigeneously developed an anti-personnel warhead version of HAR-66 and called it "Eşek Arısı". The Australian Army uses the M72A6 as an anti-building and secondary anti-armour weapon. It is carried by regular riflemen (including on operations in Iraq), while the heavier 84mm Carl Gustaf and Javelin are generally equipped by dedicated anti-armour troops. SURPLUS DEMAND
DEMONSTRATION
OTHER VARIANTS US variants International variants and designations SPECIFICATIONS (M72A2 AND M72A3) Launcher
Rocket
Maximum effective ranges
SIMILAR WEAPONS RPG-18 - The design of this Soviet weapon is widely believed to be directly copied from the LAW. SEE ALSO EXTERNAL LINKS
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