M60

M60. The M60 is a family of American general-purpose machine guns chambered for the 7.62×51mm NATO cartridge. It entered service with the United States Armed Forces in the late 1950s and became a defining weapon of the Vietnam War, known for its reliability and sustained firepower. Although officially supplanted by the M240 in many front-line roles, it remains in use with various military and law enforcement units worldwide.

Development and history

The development of the M60 began in the aftermath of World War II, as the United States Army sought to replace its aging inventory of Browning Automatic Rifle and M1919 Browning machine gun models. Engineers at the Sacramento Ordnance Depot studied captured German weapons like the FG 42 and the MG 42, incorporating design elements such as a quick-change barrel and a gas-operated rotating bolt system. The design was finalized in the 1950s, with primary production contracts awarded to companies including Maremont and Saco Defense. Its official adoption coincided with the broader NATO standardization on the 7.62×51mm round, ensuring logistical compatibility with allies like the United Kingdom and West Germany.

Design and features

The M60 is a gas-operated, air-cooled, belt-fed machine gun that fires from an open bolt. Its operating system uses a long-stroke piston, similar to that found in the M14 rifle, and it features a fixed headspace for simplified maintenance. The weapon is typically fed from a disintegrating M13 link belt and can be configured with a bipod, a tripod, or mounted on vehicles and helicopters. Early models were criticized for their weight and a fragile bipod attached to the barrel, but the design allowed for a quick-change barrel procedure to prevent overheating. Sighting systems consist of iron sights, though later variants could accommodate optical scopes like the AN/PVS-4 for night operations.

Operational history

The M60 saw its first major combat during the Vietnam War, where it served as a squad automatic weapon for the United States Marine Corps and the United States Army in conflicts from the Battle of Ia Drang to the Siege of Khe Sanh. Its firepower was crucial in jungle engagements, though soldiers noted issues with durability and weight during extended patrols. The machine gun continued in service through subsequent conflicts, including the Invasion of Grenada, the Gulf War with Task Force Ranger in Mogadishu, and the War in Afghanistan (2001–2021). It has also been used by numerous allied forces, such as the Australian Defence Force and the Army of the Republic of Vietnam.

Variants

Several key variants of the M60 were produced to address specific roles and deficiencies. The M60E1 was an improved model with a redesigned bipod and gas system, though it was not widely adopted. The M60E3, developed in the 1980s, featured a lighter barrel, a forward pistol grip, and improved handling for the United States Navy SEALs. The M60E4, later designated the Mk 43 Mod 0, incorporated a rail interface system and further refinements for special operations use by units like SEAL Team Six. Other models include the M60C and M60D for aircraft mounting on helicopters like the UH-1 Iroquois, and the M60B for door-gunner roles.

Operators

The M60 has been widely exported and used by over 30 countries. Primary operators have included the United States, South Korea, Taiwan, and Israel, which used it extensively in conflicts like the Yom Kippur War. In Latin America, it was adopted by nations such as El Salvador and Colombia. In Southeast Asia, it remains in the inventories of Thailand and the Philippines. While many NATO members, including Canada and Australia, have phased it out in favor of the FN MAG or M240, it is still found in reserve stocks and with some police tactical units like the LAPD SWAT.

Category:Machine guns Category:American inventions