The M66-SD has a high rate of fire, but is relatively weaker bullet by bullet compared to any other weapon found at Outpost Pyro. It has a shorter range than the other raider guns, except for the LS13.
Design and Function
The design of the M66-SD is a simple sub-machine gun design, with a scope on top and an overall short length. Its function is for close range suppresion and assault.
Where to find it
Before it was decommisioned, the M66-SD could be accessed by the weapon changer list available to all raiders.