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SB510 Gehmann rearsight iris, Sauer-Busk threaded
  • Sauer-Busk threaded
  • 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
  • Light reflection is kept to a minimum by external and internal matt finishes
  • Gehmann patented, so not available from other manufacturers
  • Laser engraved indications
  • Thread M8x0.75

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