Much shorter and adjustable over a wider range of 0.5 - 3.0mm
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 of adjustment.
Light reflection is kept to a minimum by external and internal matt finishes
Gehmann patented so not available from any other manufacturers` irises
Laser engraved indications
Black or black/silver
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