Open the BP_M4A4ReddotAttach and in the Class Defaults find the ADSCameraTransform setting and set the location and rotation values shown in the image below.
SGK V2 – Fixed Incorrect Reddot Sight Values for M1982
Open the BP_M4A4ReddotAttach and in the Class Defaults find the ADSCameraTransform setting and set the location and rotation values shown in the image below.
Defuse Studios 