...they exist, dunno about whether to bother with them though, I've heard they are quite crap...
...there should be a thread in the Newbies section about this if I remember rightly!
yes there are.....where i work they are pineapple grenades and they are crap..... they hit the floor and split apart....but u can get the german stick grenade type things....a bit more but man are they goooooood