The M163s uses a small, range-only radar, the AN/VPS-2, and an M61 optical lead-calculating sight.
The system is suitable for night operations with the use of AN/PVS series night vision sights that can be mounted above the sight reticle.
The gun fires at 3,000 rounds
per minute in short bursts of 10, 30, 60, or 100
rounds, or it can fire
in continuous fire mode at a rate of 1,000 rounds
per minute. In the M163 a linkless feed system is
used.

