520-35 Full-bore iris
Horizontal bars only - for size options see table below Laser engraved reference mark for adjustments Removable face-plate for attaching the tubes above Available ranges: 520-35A: 2.4 - 4.4mm 520-35B: 4.0 - 6.0mm 520-35C: 2.9 - 4.9mm 520-35D: 5.5 - 7.5mm
522B/C/D-35 Iris foresight, threaded 1 ¼" x 28, appears as a perspex element
Fits art. no. 529 big bore foresight unit “Rightsight”  Infinitely adjustable iris  522B-35 adjustment range B: 4.0 – 6.0mm 522C-35 adjustment range C: 2.9 – 4.9mm  522D-35 adjustment range D: 5.5 – 7.5mm
529-1 Full-bore foresight unit
Full-bore foresight unit  Thread tunnel on dovetail with 1 1/4" (31mm), fits European match barrels with diameter 25mm (with adapters included .725" (18.415mm) and .812" (20.615mm))  Usable with M18/M22 front sight tunnel through optional front sight raiser Vertical notched adjustments and reference scale Designed for 520-35 (1.25") iris Extremely robust clamping and design but lightweight Anti-glare tube options: 558-35: Screws into our iris (520-35) 558-35RS: Screws into the front of the sight preventing rain on your iris by use of two clear perspex internal screens with 8mm sighting hole 558-35SS: Screws into the front side of our sight