Much shorter and adjustable over a wider range of 0.5 – 3.0mm
For all well-known target rifles (M9,5×1 thread): Feinwerkbau, Steyr, Walther, Hämmerli, Grünig + Elmiger, Diana, Anschütz etc.
The fixed-seat iris works with individually pin-located tempered spring steel leaves
The aim-point is precisely maintained through the wider range of adjustment by the introduction of a new system of aperture control, which is operated by varying the pressure of a steel tube against the central aiming ring – this guarantees a perfect circle at any point within the scale
Light reflection is kept to a minimum by external and internal matt finishes
Gehmann patented, so not available from any other manufacturers