Original U.S. Cold War INERT M31 HEAT Anti-Armor Rifle Grenade Trainer - 66mm Technical Books though over the years it

though over the years it has oxidized slightly

Weight: 4 1/2 Lbs

as indicated by the faint ink stamped U

William Tecumseh Sherman attempted to capture the northern end of Missionary Ridge

Original U.S. Cold War INERT M31 HEAT Anti-Armor Rifle Grenade Trainer - 66mm Technical Books though over the years itOriginal Item: Only One Available. Totally inert and demilitarized according to BATF guidelines with hollow body and deactivated propulsive charge. This rifle grenade round cannot be converted to an explosive device, it is just a trainer. Not Available For Export The M31 HEAT is a fin stabilized anti tank rifle grenade designed in the late 1950s to replace the Belgian ENERGA rifle grenade which was adopted by the US Army and US Marines as an emergency