In 1981, Steyr-Daimler-Puch completed the prototype of the 105/A2, an improved version of the basic SK 105. It has a fully stabilised turret, oscillating part including the turret crew seats, an electrical laying system, a Digital Fire-Control Computer (DFCC) and a fully automatic ammunition loading system.

The DFCC processes the following automatic input data, cant (from sensor) and range (from laser range-finder) as well as the manual input data for crosswind, atmospheric density (altitude above sea level) and barrel wear. The ballistic data of four types of ammunition can be stored and calculated. The gunner's sight with integrated laser range-finder, together with the DFCC and armament stabilisation system, provides high first round hit probability.

An integrated passive night sight for the gunner and a changeable passive night sight for the commander ensure full night fighting capability.

The redesigned turret front gives upgraded ballistic protection. The SK 105/A1 and SK 105/A2 both retain the French 105 mm 105G1 guns. The SK 105A/2 has an all-electric gun control system.

It is envisioned that any new production models would be built to this standard.