Gehmann - Rear Iris Default:Twin Polariser (551) allowing the shooter to maintain

allowing the shooter to maintain a consistent head position

This item is tubular shaped and made from liquid plastic which is hard enough to protect and soft enough not to scratch or damage the bolt itself

this stock has it

1 MIL (10mm)

5 and 6 SLR

Gehmann - Rear Iris Default:Twin Polariser (551) allowing the shooter to maintain(#PH510) Gehmann Rear Iris Adjustment range 0. 5mm 3. 0mm. Thread size suits Parker Hale or Redfield. (#550) Gehmann Rear Iris twin polariser, Adjustment range 0. 5mm 3. 0mm. Thread size 9. 5mm. (#551) Gehmann rearsight iris with twin polarisers and 1. 5x diopter, incorporates #550. Adjustment range 0. 5 3. 0mm. Thread size 9. 5mm (#566) Incorporates the patented 510 iris, Adjustable over a wider range of 0. 5 3. 0mm. Filters are of the highest