It looks like the end of a stahlgrenate M24, the part that holds the fuse, and then the explosive head screws on to.
47th MP Co/47th Inf Div 1983-1988
583rd Ord Co 59th Ord Bde Muenster, W Germany
Looking for P37 ammo pouch with No4 bayo frog
I agree with Paul.
[h=3]e plu·ri·bus u·num[/h]
ok, I have to search up pics of the parts of the stahlgrenate
It must be this part
you got it first, lebus12 Thanks!