M18 Claymore
The M18 Claymore, a directional fragmentation mine, is 81/2 inches long, 13/8 inches wide, 31/4 inches high, and weighs 31/2 pounds. The mine contains 700 steel spheres ( grains) and 11/2 pound layer of composition C4 explosive and is initiated by a No. 2 electric blasting cap.