The gun is set in AUTO/MANUAL mode. It uses 5.56mm NATO rounds.
An assault rifle used by the U.B.C.S. It is a useful crowd control weapon capable of keeping many Zombie at bay, and is even effective against Hunters. This weapon is available for Carlos, however ammunition for it is scarce so you should conserve your bullets where possible.
Held by Nemesis when you encounter him for the seventh time (see the list of his encounter locations). He will only drop this if you manage to drop him into unconsciousness. Additionally, you will only receive this item if this is your very first playthrough. On subsequent playthroughs you will instead receive the Infinite Bullets item.