M20s

M20s refers to a designation used for various items, most commonly associated with ammunition. The "M" signifies a standard issue item by the United States military, and the number "20" indicates a specific type or model. This designation is most famously applied to the M20 Super .22, a semi-automatic rifle produced by the Winchester Repeating Arms Company. This rifle was popular for target shooting and plinking.

Another significant M20 designation is the M20 recoilless rifle, a 75mm anti-tank weapon developed by the United States during World War II. It was designed to provide infantry with a powerful anti-armor capability, capable of firing high-explosive and armor-piercing rounds. The M20 recoilless rifle saw service in various conflicts following World War II.

The term M20 can also appear in other contexts, such as model numbers for industrial equipment or components. However, without further specification, it is most frequently recognized in relation to firearms and military ordnance. The specific meaning of M20s is therefore dependent on the context in which it is used, though its association with military applications is prevalent.