Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade Flintlocks Manila Bay steamed to the

Manila Bay steamed to the Aleutians in mid-August

to highlight certain areas

perhaps even 75 - 100 years older

the beginnings of the Twentieth Century saw the rise of a modern navy

Unlike the Army's version

Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade Flintlocks Manila Bay steamed to theOriginal 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, an 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.