Grenade is one of the forms of explosive ammunitions used by the military the world over. Operating a grenade is quite simple and even the people who are not trained properly can use it. All a person needs to do is detach the trigger pin and throw it towards the required target. The price of a grenade in 2011 ranges from $100 to $500, but buying it off the shelf is not really possible as special permission for its use is necessary. Only vendors for defense procurement can buy or sell them legally.