The MK 81 is a type of general-purpose bomb used by the United States military. It weighs 250 pounds and is designed for use against a variety of targets, including vehicles and buildings. The bomb is typically equipped with a high-explosive warhead, making it effective for both air-to-ground and ground-to-ground operations. This bomb is part of a family of munitions that includes other variants like the MK 82 and MK 83, which differ in weight and explosive power. The MK 81 is often deployed from aircraft and can be used in precision strikes, contributing to military operations while minimizing collateral damage.