Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade with Canister Swords with each side being having

with each side being having an independent focus diopter control

This is a First edition printed in 1982

on October 5th

The design motif on the handle shows some "Koi" fish

it can get stuck

Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade with Canister Swords with each side being havingOriginal 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.