Things I liked:light weight, the 2 base clamp screws and the recoil pin hole screw Things I would have changed: allen wrench(too soft) and some of the screw sockets seem to be over size! What others should know:I used these rings to mount a Charles Daly 2x scope on a Beeman P5 pistol and they wanted to slide. I finally tighten them down then ran the recoil screw down onto the base(the base does not have a recoil pin hole)and they seem to be staying in place.Maybe the wrong rings for a springer pistol!
Things I liked:The sights,super trigger and all around quality! Things I would have changed:Nothing! What others should know:It shoots so well with the open sights I have not gotten around to putting a scope on it yet.