Gehmann Colour 566

30 year guarantee
Extra short construction
New patented aperture control system
Perfect circle guaranteed
Adjustable from 0.5mm > 3.0mm
Minimum light reflection internally
Six colour filters; yellow, green, amethyst, light grey, dark grey and orange
Can be used as iris only (no colour)
For Parker Hale & Redfield sights, use PH999 adaptor below