Original U.S. Vietnam War M72 Light Anti-Armor Weapon LAW Tube
Original Item: Only one available. This is an inert non-firing BATF compliant M72A2 LAW Light Anti-Tank Weapon offered in excellent condition. Once fired, these tubes are unable to be reloaded.
Not Available For Export
These are timeless in design, which the U.S. Military has tried to replace in the past, but was unable to find anything better than these disposable launchers.
This very nice example has the front sight intact without rear sight, both are often seen broken or missing. The sling and end cap are both present except for the original retaining pin. This example has extremely faint markings, too faint to read unfortunately.
A very nice example, ready to display!
The M72 LAW
(Light Anti-Tank Weapon, also referred to as the Light Anti-Armor
Weapon or LAW as well as LAWS Light Anti-Armor Weapons System) is a portable one-shot 66-mm unguided anti-tank weapon. It has been in use continuously in various versions since the 1960's. This example most likely dates from the late 1970s. It is in great condition, still extends and even dry fires. Paint is still very good, though it has had areas repainted, and the instruction label is intact as well. Safety handle/cocking lever is still present and functional, and the cap has the retaining pin.
The solid rocket propulsion unit was developed in the newly formed Rohm and Haas research laboratory at Redstone Arsenal in 1959, then the full system was designed by Paul V. Choate, Charles B. Weeks, Frank A. Spinale, et al. at the Hesse-Eastern Division of Norris Thermadore. American production of the weapon began by Hesse-Eastern in 1963, and was terminated by 1983; currently it is produced by Nammo Raufoss AS in Norway and their subsidiary Nammo Talley, Inc. in Arizona.
In early 1963, the M72 LAW was adopted by the U.S. Army and U.S. Marine Corps as their primary individual infantry anti-tank weapon, replacing the M31 HEAT rifle grenade and the M20A1 "Super Bazooka" in the U.S. Army. It was subsequently adopted by the U.S. Air Force to serve in an anti-emplacement/anti-armor role in Air Base Defense duties.
In the early 1980s, the M72 was slated to be replaced by the FGR-17 Viper. However, this program was canceled by Congress and the M136 AT4 was adopted instead. At that time, its nearest equivalents were the Swedish Pskott m/68 (Miniman) and the French SARPAC.
The increased importance of tanks and other armored vehicles in World War II caused a need for portable infantry weapons to deal with them. The first to be used (with limited success) were Molotov cocktails, flamethrowers, satchel charges, jury-rigged landmines, and specially designed magnetic hollow charges. All of these had to be used within a few meters of the target, which was difficult and dangerous.
The U.S. Army introduced the bazooka, the first rocket-propelled grenade launcher. Despite early problems, it was a success and was copied by other countries.
However, the bazooka had its drawbacks. Large and easily damaged, it required a well-trained two-man crew. Germany developed a one-man alternative, the Panzerfaust, having single-shot launchers that were cheap and requiring no special training. As a result, they were regularly issued to Volkssturm home guard regiments. They were very efficient against tanks during the last days of World War II. However, the Panzerfaust was not a rocket launcher but instead a recoilless rifle.
The M72 LAW is a combination of the two World War II weapons. The basic principle is a miniaturized bazooka, while its light weight and cheapness rival the Panzerfaust.
The weapon consists of a rocket within a launcher consisting of two tubes, one inside the other. While closed, the outer assembly serves as a watertight container for the rocket and the percussion-cap 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 striker in the rear tube impacts a primer, which ignites a small amount of powder that "flashes" down a tube to the rear of the rocket and ignites the propellant in the rocket motor. The rocket motor burns completely before leaving the mouth 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. The early LAW warhead, developed from the M31 HEAT rifle grenade warhead, uses a simple, but extremely safe and reliable, piezoelectric fuze system. On impact with the target, the front of the nose section is crushed causing a microsecond electric current to be generated, which detonates a booster charge located in the base of the warhead, which sets off the main warhead charge. The force of the main charge forces the copper liner into a directional particle jet that, in relation to the size of the warhead, is capable of a massive amount of penetration.
A unique mechanical set-back safety on the base of the detonator grounds the circuit until the missile has accelerated out of the tube. The acceleration causes the three disks in the safety mechanism to rotate 90° in succession, ungrounding the circuit; the circuit from the nose to the base of the detonator is then completed when the piezoelectric crystal is crushed on impact.
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 original M72 warhead penetrated 200mm/8 inches of armor, while the improved M72A2 model boosts this to 300mm/12 inches.
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. A training variant used by the Finnish armed forces fires 7.62-mm tracer rounds.
The US Army tested other 66-mm rockets based on the M54 rocket motor used for the M72. The M74 TPA (Thickened Pyrophoric Agent) had an incendiary warhead filled with TEA (triethylaluminium); this was used in the M202A1 FLASH (FLame Assault SHoulder weapon) 4-tube launcher. The XM96 RCR (Riot Control Rocket) had a CS gas-filled warhead for crowd control and was used with the XM191 quadruple-tube launcher.
Once fired in combat, the launcher is required to be destroyed to prevent its use by the enemy as a booby-trap; the enemy could collapse the launcher to its original configuration, fill it with explosives, and rig it to explode if moved by a soldier believing it to be unused. Due to the single-use nature of the weapon, it was issued as what is called a "wooden round" of ammunition by the Canadian Army and the United States Army, requiring no checks or maintenance, just as small-arms ammunition can be stored in the same manner for years without any problems.
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