The ACOG scope is a small scope with a iron crosshair marker coming up from the bottom. The scope covers the entire screen and only a small portion of it is It has a x2 scope.
Unlocked on the following levels:
Assault - 9
SMG - 21
LMG - 38
The ACOG in Blacklight: Tango Down is somewhat overpowered due to the fact that a laser dot sight points out of the scope. Only about 40% of players are killed by weapons using ACOG sights.
The ACOG scope has a similar appearance to the SUSAT scope.