Tuesday, September 23, 2008

Barrett M82A1/XM107





Barrett M82A1/XM107
Type: Anti-material rifle
Place of origin: United States
Service History:
In service 1989–present
Used by:
Provisional Irish Republican Army, Malaysia (Special Forces Group), Greece, Turkey, Mexico, United States, Netherlands, Norway, United Kingdom, Germany, Sweden, Finland, Israel, Spain, Italy, Chile, and others.
Wars: Gulf War, the Kosovo conflict (used by Kosovo Liberation Army – UCK), The Troubles, Iraq war, Afghan war, Desert Strorm
Production History:
Designed in 1980
Manufacturer: Barrett
Unit cost: $8,650
Produced: 1982–present
Variants: M82, M82A1, M82A1A, M82A1M, M82A2, M82A3, XM107 (M107)
Specifications:
Weight: 29.7 lb (13.5 kg) or 30.9 lb (14.0 kg)
Length: 48 or 57 inches (115 cm or 122 cm)
Barrel length: 508mm (20 in) or 737mm (29 in)
Cartridge: .50 BMG (12.7x99mm NATO
Caliber: .50
Action: Recoil operated, rotating bolt
Muzzle Velocity: 853 m/s (2800 ft/s)
Effective range: 1,850 m
Feed system: 10-round detachable box magazine
The M82 (also more recently known as the M107) is a heavy SASR (Special Application Scoped Rifle) developed by the American Barrett Firearms Company. It is used by many units and armies around the world, including the American Special Forces. It is also called the "Light Fifty" for its .50 caliber BMG (12.7 mm) chambering. The weapon is found in two variants — the original M82A1 (and A3) and the bullpup M82A2. The M82A2 is no longer manufactured, though XM500 can be seen as its successor, in that it also employs a bullpup configuration.
The Barrett Firearms Company was founded by Ronnie Barrett for the single purpose of building semi-automatic rifles chambered for the powerful 12.7x99mm NATO (.50 BMG) ammunition, originally developed for and used in M2 Browning machine guns. Barrett began his work in the early 1980s and the first working rifles were available in 1982, hence the designation M82. Barrett continued to develop his rifle through the 1980s, and developed the improved M82A1 rifle by 1986.
The first conventional military success was the sale of about 100 M82A1 rifles to the Swedish Army in 1989. Major success followed in 1990, when the US Military purchased significant numbers of the M82A1 during operations Desert Shield and Desert Storm in Kuwait and Iraq. About 125 rifles were initially bought by the US Marine Corps, and orders from US Army and Air Force soon followed. The M82A1 is known by the US Military as the SASR — "Special Applications Scoped Rifle", and it was and still is used as an anti-matériel weapon and EOD (explosive ordnance disposal) tool. The long effective range, over 1500 m with a record shot of 2500 m, along with high energy and availability of highly effective ammunition such as API and Raufoss Mk 211, allows for effective operations against targets like radar cabins, trucks, parked aircraft and so on. The M82 can also be used to defeat human targets from standoff range or when targets are behind cover. However anti-personnel work is not a major application for the M82 (or any other .50 BMG rifle, for that matter). There is a widespread misconception that a number of treaties have banned use of the .50 BMG against human targets, and recruits have been advised by generations of drill instructors to only aim a .50 BMG at an enemy soldier's web gear or other equipment worn on his body. However, the U.S. Army Judge Advocate General's office has issued a legal opinion that the .50 BMG and even the Raufoss Mk 211 round are legal for use against enemy personnel.
The XM107 was originally intended to be a bolt-action sniper rifle, and it was selected by the U.S. Army in a competition between such weapons. However, the decision was made that the US Army did not, in fact, require such a weapon. The rifle originally selected under the trials to be the XM107 was the Barrett M95.
When the Army decided it no longer needed these weapons, it found that it had money already allotted for "XM107 rifles," and rather than deal with this complication, the decision was made to change the M82's designation to M107, and use the money to purchase those type of rifles instead. In summer 2005, the M82 finally emerged from its Army trial phase and was approved for "full materiel release", meaning it was officially adopted as the Long Range Sniper Rifle, Caliber .50, M107. The M107 uses a Leupold 4.5x14 Vari-X scope
The Barrett M107 is a .50 caliber, shoulder fired, semi-automatic sniper rifle. Like its predecessors the rifle is said to have manageable recoil for a weapon of its size owing to the barrel assembly that itself absorbs force, moving inward toward the receiver against large springs with every shot. Additionally the weapon's weight and large muzzle brake also assist in recoil reduction. Various changes were made to the original M82A1 to create the M107, with new features such as a lengthened accessory rail, rear grip and monopod socket. Barrett has recently been tasked with developing a lightweight version of the M107 under the "Anti-Materiel Sniper Rifle Congressional Program," and has already come up with a scheme to build important component parts such as the receiver frame and muzzle brake out of lighter weight materials.
The Barrett M107, like previous members of the M82 line, are also referred to as the Barrett "Light Fifty". The designation has in many instances supplanted earlier ones, with the M107 being voted one of 2005's Top 10 Military Inventions by the U.S. Army.

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