Steyr Mannlicher
As rear sighting system a universal Walther diopter was used. This high end target aperture sight offering windage and elevation correction in (≈ 0.069 MOA) increments at came with a rubber eye shield. This diopter was used by Walther for their complete match rifle product range and Steyr Mannlicher for their 300 metre full bore rifles. Like any high end diopter this Walther diopter accepts adjustable diopter aperture and optical filter systems to ensure optimal sighting conditions for match shooters.