The usual Beiter quality accessory.   Hardly used.   I should like to have continued using it but it was not really suitable when I changed my riser.

It allows for very fine drawlength adjustment, one click is 0.125mm and the angle can also be adjusted.  Comes  with two clicker blades, 0.20 & 0.25 mm..

There are a couple of scuff marks on the plate where it was bolted  to the riser but otherwise in excellent condition.

Asking price includes postage.