The KEW-7, or Keats Energy Weapon - Mark VII, is one of the two versions of the Keats Energy Weapon still in use by the U.S. Military during 2039.
Origins
Due to the success of the creation of the energy weapons, Keats emediatly went to work creating more. This is the seventh released energy weapon from Keats' Firearms, which came out in 2038. It was still being used by the U.S. Military by 2039.
Effectiveness
It is a semi-automatic rifle that fires energy pulses that are one-hit kills on zombies till round 8. It's battery can fire 75 times, and then it is useless, due to non-rechargable or replacable battery. (unless you get a Max Ammo)