I Mounted the sights on a CZ 512 22 magnum tactical rifle. They seem to be very well made. They attached to the picatinny rail very solidly. The rear sight is adjustable for windage, by hand, but you will need an AR M2 tool for the front sight. The rear sight has two apertures, one for short range and one for long range. I am very impressed with the quality of the sight set and would recommend them to anyone needing this type of sight set up.
The front site was did not lock to 90 degrees, I took it apart and ground it down now it works great.