M140

M140 is a designation that can refer to several different entities, most notably a star and a rifle.

The M140 star is a celestial object located in the constellation Cassiopeia. It is classified as a variable star, meaning its brightness fluctuates over time. Astronomers study M140 to understand stellar evolution and the physical processes occurring within stars. Its precise astronomical properties, such as its spectral type and luminosity, are cataloged in various astronomical databases.

In a military context, M140 refers to a firearm, specifically a variant or designation associated with rifle development or production. While not as widely known as some other military designations, such a nomenclature typically indicates a specific model or iteration within a firearm lineage, often for procurement or internal tracking purposes. Further details regarding its technical specifications, operational history, or manufacturer would typically be found in specialized military hardware resources. The specific nature of the M140 firearm would depend on the context of its usage, whether it's a prototype, a specific production run, or a designation within a particular armed forces' inventory.