Scrumbag yes the guys had a ball of a time it was 2018 cause it was to be held this year at Darwin hosted every second year. They shot with us the week before the world champs and one of our BASA guys won the tournament.
It is actually supplied with a screw, where the head rests against the bridge. I used one to mount an aimpoint on a CZ 527.
I find that on my 9.3x62. The stock fits me well with the open sights but I need just a bit of lift to work well with the red dot.What I dont like about the Recknagel QD mount is that it lifts the reflex or aimpoint and might be too high where you have to lift your head when shooting.
My goal was to get as close as possible to using it like open sights.