Original U.S. Vietnam War INERT Practice M31 HEAT Anti-Armor Rifle Grenade Trainer Dated 1964 - 66mm Snider Rifle Accessories The mark basically means that

The mark basically means that the Badge is an Otto Placzek design

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Original U.S. Vietnam War INERT Practice M31 HEAT Anti-Armor Rifle Grenade Trainer Dated 1964 - 66mm Snider Rifle Accessories The mark basically means thatOriginal 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