Fire In The Hole A grenade is an explosive weapon that is usually hand launched. It consists of an explosive charge and a striker to trigger the detonator. They were used a lot in WWII. This grenade has the same look and color as the original one used in wars. The only difference is that this is plastic and cannot blow something or someone into a million pieces. Look Like a General! Although this isn't a real grenade, it can be used as a costume accessory to complete your look of a soldier or a general. Get some dark boots, the uniform and the hat. War is hell, but making your costume perfect is easy.