The M21 SWS (Sniper Weapon System) is a semi-automatic sniper rifle that has been used by the US military and law enforcement agencies since the early 1970s. It is a modified version of the M14 rifle, which was the standard issue infantry rifle of the US Army during the Vietnam War. History: The M21 was developed to address the need for a more accurate and versatile sniper rifle than the M14. It was developed by the Rock Island Arsenal in Illinois in collaboration with the US Army Marksmanship Training Unit. The M21 was first introduced into service in 1975, and it quickly proved to be an effective weapon for snipers. The M21 is based on the M14 rifle, which was developed in the late 1950s. The M14 was designed to replace the M1 Garand rifle, which had been the standard issue infantry rifle of the US Army since World War II. The M14 was semi-automatic, which meant that it could fire one round with each pull of the trigger. It was chambered in 7.62x51mm NATO, which was a powerful cart

 The American Rifle ( , M14) was an American combat rifle with a 7.62 × 51 mm NATO rifle and single - shot capability. Mostly replaced by M16 rifles in the United States Army, U.S. Marine Corps, and U.S. Navy, but limited use in the nama fields is limited. The M14 rifle is also the basis for the M21 sniper rifle and the M25 sniper rifle. It was also the type of rifle used only for five years (1959–1964), the shortest time in American history. The M14 EBR (Mk.14 EBR) is now modernized and used as a support rifle, and is used by the U.S. Marine Corps as an M39 EMR designated rifle to increase the length of the gun and remove the automatic firing system. In the United States, the M1A is sold to the private sector as a semi-automatic rifle, and is mainly used in hunting guns and shooting sports over the size of deer. In 1943, the ministry planned to completely and automatically renovate the M1 Galland. After research, the T20 was created in 1945 under the leadership of M1 designer John C.

  The FRF2 (Fusil à Répétition de Précision Modèle F2) is a bolt-action sniper rifle that was designed and produced by the French company MAS (Manufacture d'Armes de Saint-Étienne) in the 1980s. The FRF2 is a modification of the earlier FRF1 sniper rifle, which was designed in the 1960s. The FRF2 was developed to meet the requirements of the French armed forces, specifically the Gendarmerie and the French Army, for a long-range precision rifle. The rifle is chambered for the 7.62x51mm NATO cartridge and is capable of firing a range of ammunition types, including ball, tracer, and armor-piercing rounds. The FRF2 features a heavy, free-floating barrel that is 25 inches (635mm) long, which gives the rifle excellent accuracy and range. The barrel is fitted with a flash suppressor, which reduces the muzzle flash when firing, and a threaded muzzle that allows for the attachment of a suppressor or other muzzle device. The rifle has a detachable box magazine that holds 10 rounds of ammunit