The key focus of Phase 3 in the Ratel SLEP (Service Life Extension Program) was the significant upgrade in firepower. The turret was modernized with commercial robotic gun drives, while the original ring gear and mechanical gearboxes were retained, helping control costs. This fully electric turret is now operated via an intuitive "cow horns" control system, allowing the gunner to steer while monitoring a new digital display linked to a slave-mounted gunner’s sight.
To maintain cost efficiency and crew familiarity, the original French 20mm F2 M693 automatic cannon (manufactured under license as the Denel GI-2) was retained. This decision also ensured continued use of affordable, existing ammunition stocks.
Gunners operating the upgraded Ratel benefit from several advancements, including a laser rangefinder, day and uncooled thermal night sights, and a digital camera system for easy bore-sighting. Live firing trials during the 2023 Vuk’uhlome exercise demonstrated a dramatic improvement in both accuracy and first-round hit probability, with six experienced gunners from 8 SAI successfully training on the system in just 30 minutes.
Additionally, an optional fully stabilized Commander’s panoramic sight is available, complete with a laser rangefinder and thermal night vision, providing full Hunter-Killer capabilities in all weather conditions, day or night.
The driver is not left out of the upgrades either, receiving a pull-down screen with a Thermal Imaging Night Driving System (TINDs), enabling full blackout operations for the entire crew. These upgrades ensure that the Ratel SLEP is fully equipped for night operations, enhancing the vehicle's overall combat effectiveness.