M40 recoilless rifle

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	Weapon: M40 recoilless rifle Type: Recoilless Rifle Country of Origin: United States Year Adopted: 1952 Caliber: 105x607mmR Action: Recoilless Gun Overall Length (mm): 1140.0 Overall Length (in): 44.88 Weight (kg): 15.00 Weight (pounds): 33.07 Effective Range (m): 2000 m Effective Range (yards): 2187.23

The M40 recoilless rifle is a 106mm man-portable, crew-served weapon system designed by the United States in the 1950s. It features a rifled barrel and employs a venturi effect to counteract recoil, making it manageable for infantry and vehicle-mounted roles. Capable of firing a variety of rounds, including high-explosive anti-tank (HEAT) and high-explosive (HE), the M40 was developed to engage armored vehicles, fortifications, and personnel with precision and power.

First introduced in 1955, the M40 became widely adopted by U.S. forces and numerous allied nations, with production exceeding 60,000 units during its peak. It was often mounted on Jeeps, M274 mechanical mules, and other light vehicles, enhancing mobility and battlefield versatility. The weapon's simplicity, reliability, and cost-effectiveness compared to guided missile systems made it a popular choice for anti-armor operations during the Cold War era.

The M40 saw extensive service in conflicts such as the Vietnam War, where it proved effective against enemy bunkers and lightly armored vehicles. It gained notoriety for its rugged design and ease of use, even in harsh combat conditions. Though largely replaced by modern guided anti-tank systems, the M40 remains in limited service with some militaries and irregular forces, cementing its legacy as one of the most iconic recoilless rifles of the 20th century.