The M3 is a fragmentation type of land mine intended primarily for use against personnel. It consists of a cast iron block containing 453.60g of flake TNT and a firing device. It has an effective radius against personnel of 10 yards when fired at the surface of the ground. The effective radius is slightly increased when the mine is used several feet above ground level, and is decreased when the mine is buried in the ground. Fragments of the mine may be thrown more than 100 yards. The mine body and the firing device are painted OD with the exception of the closing disc, which is yellow. The mine body is stenciled in black with type and model, lot number, and date of loading.
76mm x 76mm x 133mm