The M7 is a small, metal-cased United States anti-tank blast mine that was used during the Second World War.
Approximately 2.5 million were produced before production ceased, and although it has long since been withdrawn from U.S. service, it can be found in Angola, Burma, Cambodia, Chad, Eritrea, Ethiopia, Korea, Lebanon, Myanmar, Somalia, Thailand, and Zambia.
The mine has a thin olive green painted steel case, with a large hinged pressure plate.
The fuze is triggered by relatively low pressures, making the mine effective against trucks and cars.
The most common type of booby trap detonator is the M1 pull which is installed in the end fuse well.