The M2 50 Cal, also known as the M2 Browning or simply the "Ma Deuce," is a heavy machine gun designed by John Browning in the early 20th century. This iconic firearm has been in service for over 90 years, with its durability, reliability, and versatility making it a staple in military arsenals around the world. The M2 50 Cal is chambered for the.50 BMG (12.7x99mm) cartridge, which provides a significant amount of kinetic energy and allows the gun to engage targets at long ranges.
The development of the M2 50 Cal began in the 1910s, when John Browning was working on a machine gun that could fire the.50-inch (12.7mm) cartridge. The first prototype, known as the M1918, was tested in 1918, but it was not until the 1920s that the design was refined and the M2 was officially adopted by the US military. Since then, the M2 50 Cal has undergone several upgrades and improvements, including the addition of a quick-change barrel and a new sighting system.
Key Points
- The M2 50 Cal is a heavy machine gun designed by John Browning in the early 20th century
- The gun is chambered for the.50 BMG (12.7x99mm) cartridge, providing significant kinetic energy and long-range capabilities
- The M2 50 Cal has been in service for over 90 years, with its durability, reliability, and versatility making it a staple in military arsenals worldwide
- The gun has undergone several upgrades and improvements, including the addition of a quick-change barrel and a new sighting system
- The M2 50 Cal is used for a variety of applications, including anti-personnel, anti-materiel, and sniper roles
Design and Operation

The M2 50 Cal is a recoil-operated, air-cooled machine gun that uses a short-recoil piston to cycle the action. The gun has a maximum rate of fire of around 550 rounds per minute, although this can be adjusted depending on the specific application. The M2 50 Cal is typically mounted on a tripod or other stabilized platform, which allows the gunner to accurately engage targets at long ranges.
The M2 50 Cal has a number of distinctive features that set it apart from other machine guns. One of the most notable is its large, heavy barrel, which is designed to withstand the high pressures and temperatures generated by the.50 BMG cartridge. The gun also has a distinctive "pistol grip" stock, which allows the gunner to control the recoil and aim the gun accurately. The M2 50 Cal is typically fed from a belt of ammunition, which is loaded into the gun through a feed tray on the left side of the receiver.
Tactical Applications
The M2 50 Cal is used for a variety of tactical applications, including anti-personnel, anti-materiel, and sniper roles. The gun’s long range and high kinetic energy make it particularly effective against hardened targets, such as bunkers and fortifications. The M2 50 Cal is also used for suppression and area denial, where its high volume of fire and long range can be used to pin down enemy forces and prevent them from maneuvering.
In addition to its military applications, the M2 50 Cal is also used by law enforcement and civilian shooters. The gun's accuracy and reliability make it a popular choice for competitive shooting and hunting, while its intimidation factor and stopping power make it a favorite among collectors and enthusiasts.
Specification | Value |
---|---|
Caliber | .50 BMG (12.7x99mm) |
Rate of Fire | 550 rounds per minute |
Muzzle Velocity | 2,700 ft/s (822 m/s) |
Effective Range | 2,000 yards (1,829 meters) |
Weight | 38 pounds (17.2 kilograms) |
Length | 65 inches (165.1 centimeters) |

Maintenance and Repair

The M2 50 Cal is designed to be relatively easy to maintain and repair, with a number of features that make it accessible to gunners and armorers. The gun’s quick-change barrel, for example, allows the gunner to rapidly replace a hot or damaged barrel with a new one, which helps to minimize downtime and keep the gun in operation. The M2 50 Cal also has a number of other features that make it easy to maintain, including a removable feed tray and a simple, tool-free sighting system.
Despite its reputation for reliability, the M2 50 Cal is not immune to problems. One of the most common issues with the gun is wear on the receiver and barrel, which can cause the gun to become inaccurate or even fail to cycle. The M2 50 Cal is also sensitive to ammunition quality, and can be prone to jams and other problems if it is fed low-quality or corroded ammunition.
Historical Context
The M2 50 Cal has a long and storied history, dating back to the early 20th century. The gun was first used in combat during World War II, where it quickly proved itself to be a valuable asset on the battlefield. The M2 50 Cal was used by the US military and its allies for a variety of applications, including anti-personnel, anti-materiel, and sniper roles.
Since World War II, the M2 50 Cal has continued to evolve and improve, with a number of upgrades and modifications being made to the design. The gun has been used in a variety of conflicts, including the Korean War, the Vietnam War, and the Gulf War, and has proven itself to be a reliable and effective weapon in a variety of environments.
What is the maximum effective range of the M2 50 Cal?
+The maximum effective range of the M2 50 Cal is approximately 2,000 yards (1,829 meters), although this can vary depending on the specific application and the quality of the ammunition being used.
What is the rate of fire of the M2 50 Cal?
+The rate of fire of the M2 50 Cal is approximately 550 rounds per minute, although this can be adjusted depending on the specific application and the preferences of the gunner.
What is the weight of the M2 50 Cal?
+The weight of the M2 50 Cal is approximately 38 pounds (17.2 kilograms), although this can vary depending on the specific configuration and any accessories that are being used.
In conclusion, the M2 50 Cal is a powerful and reliable heavy machine gun that has been in service for over 90 years. Its durability, versatility, and long-range capabilities make it a valuable asset on the battlefield, and its reputation as a reliable and effective weapon has been earned through its use in a variety of conflicts. Whether used for anti-personnel, anti-materiel, or sniper roles, the M2 50 Cal is a gun that is sure to deliver, and its continued use by military and law enforcement agencies around the world is a testament to its enduring value and effectiveness.