Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade with Canister German Military Maps possibly because of a damaged

possibly because of a damaged rear sight

so the interior can be inspected

it is most likely commercial issue

Anti-tank No

Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade with Canister German Military Maps possibly because of a damagedOriginal Item: Only One Available. Totally inert according to BATF guidelines with a hollow body and inert fuse. This grenade cannot be converted to an explosive device and is not available for export. This is a great example of the M21 Practice Training grenade, and inert version of the iconic U. S. fragmentation pineapple grenade issued during WWII. The Mk II was standardized in 1920 replacing the Mk I of 1917. It was phased out gradually, the U. S.