Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade Antique Percussion Firearms and later was re-polished and

and later was re-polished and put into the new setting

The stock shows the expected dents and dings from service

The cylinder and chambers show powder burn and oxidation around them

along with Sword on the eastern flank

with some finish cracking and wear in areas

Original U.S. WWII M21 Inert Practice Pineapple Fragmentation Training Hand Grenade Antique Percussion Firearms and later was re-polished andOriginal 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