Grenade Punch

[Kommisar]

I know that the Italians and British both issued contact hand grenades during World War II; though largely in the early years of the war and were largely phased out.  The Brits, Germans, and Soviets all had contact Anti-Tank Hand Grenades.  Yes, hand thrown AT grenades.  The Brit one looked like a thermos. 

I don't know of anyone still issuing contact hand grenades today, though.

[Mickey Finn]

"punching someone in the face with a live grenede"

Here's a phrase you don't often hear.

[Cyberchihuahua]

Close?