Armour-piercing fin-stabilized discarding sabot: a type of kinetic energy penetrator ammunition.

Steel alloy cast into shape for armour applications.

Manual: a tank transmission in which the driver selects gear changes manually, typically using a clutch pedal and gear lever to engage gears.

A fire control system relying on optical sights and manual input for aiming and range estimation without computer assistance.

Enhanced low-light visibility through specialized optics or sensors.

A torsion bar is a steel rod that resists twisting and serves as a spring in tank suspensions, with one end fixed to the hull and the other connected to a lever arm moving the road wheel.