The KRM-262 is a pump-action shotgun featured in Call of Duty: Black Ops III. It has two fire modes, toggled by aiming down the sights. Hipfiring the KRM-262 will have standard shotgun pellet spread. However, aiming down the sights will cluster the pellets in an extremely tight cone of fire, ideal for taking out enemies at longer distances.
Check out the video below for the KRM-262 best shotgun class setup and what attachments to use.