597 I.S.S.F. crossover rearsight prism

597 I.S.S.F. crossover rearsight prism
  • For shooters with one defective eye wishing to shoot with the other
  • Completely waterproof with an external lens at either end for water and dust protection
  • Centre to centre sight line displacement of 65mm gives no physical change to the sight picture but does require use of a larger than usual aperture
  • Attachment is direct to a standard 1" sight disc - or if using one of our shorter irises, via 597A - or a longer iris, via 597B
  • A 1" knurled outer ring is used nearest the eye for attaching an eyeshield or eyecup