Tech Times reports that “Engineers at the U.S. Army Armament Research, Development and Engineering Center (ARDEC) are designing a next-generation hand grenade, which will have two deadly modes and could offer more flexibility to U.S. soldiers.”

“The U.S. military uses two types of grenades: fragmentation and concussion models. A fragmentation grenade explodes and it releases shrapnel and ball bearing that hits enemy combatants. Fragmentation grenades have a radius of about 49 feet.

“A concussion grenade results in a powerful blast that can incapacitate or kill. However, these grenades have a smaller radius, which means soldiers have to use them in close proximity.”