Abrams Tank - The M1 Abrams tank is one of the heaviest main battle tanks currently in service, yet it is as highly mobile as it is heavily armed and armored. Named after former Army Chief of Staff General Creighton Abrams, the tank is utilized by both the U.S. Army and U.S. Marine Corps. Our charm is a .925 sterling silver reproduction of the Abrams tank inscribed on the bottom with “Abrams”.