Now let me get this streight
M33 same as M67 minus safety clip
M67 frag has safety clip
M50 is a modifided M30 training grenade plugged and filled with TNT and used as
alernative live fire traing grenade for qualification.
This answers a question for me
I have a smooth skin M69 type with no frag structure
I remember when I was in basic training at Ft Dix NJ in 1969 to qualify in grenades we threw two blue M69s and then a half charge frag. Could this be the infamous M33?






Top left pic Left to Right M26, M30, M69 OVAL, M69 SPHERICAL, M33?, M67 FRAG,
Let me clarify the (for now M33) looks like it has been sealed on the bottom closer inspection of the inside revealed that the bottom of the grenade shows no spaul like what you would find if someone had welded the base hole up. the interior is smooth with no imperfections yet there is no preformed frag structure. "A little more fuel for the fire"