Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade U.S. Army This design features a thermoplastic

This design features a thermoplastic impregnated duck canvas body

The 75 rounds of ammunition was evenly distributed in each side of the magazine with a central feed "tower" where the ammunition is fed to the bolt

The front of the magazine housing is marked with an Arrow in a Triangle

plus large

Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade U.S. Army This design features a thermoplasticOriginal Item: Only One Available. Totally inert according to BATF guidelines with a hollow body and inert fuse. 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. Navy being the last users, and on 2 April 1945 the Mk II and Mk IIA1 were re designated