GIK-1: Kind of ARK-10 system, but older, it uses the same ARK-5P like in the MiG-15, but with more features.
AGI-1: Artificial Horizon, inverted type. Sky is below, ground is above.
MUS-2 (APS-4M System): Electric control of the stabilizer, it´s used in case the hydraulic system fails. Kind of like the A-10, but this one is using the stick and with better response time.