Original U.S. WWII M21 Inert Repainted Practice Pineapple Fragmentation Training Hand Grenade Category_Martini-Henry Accessories We cannot make out any

We cannot make out any of the numbers

Diameter: 3"

struck from the Navy List on 6 August 1930

Really a great "battle torn" or "tattered" example

For reasons lost to history

Original U.S. WWII M21 Inert Repainted Practice Pineapple Fragmentation Training Hand Grenade Category_Martini-Henry Accessories We cannot make out anyOriginal Item: Only One Available. Totally inert according to BATF guidelines with a hollow body and inert fuse. This is a nice 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