Williams Diopter Sight

This little sight is very well made from anodized aluminum. The scales and markings are clear and well printed. The movement is good enough and the aperture is a good medium. Unless you are going to the Olympics this sight will probably meet your needs and be better than you are!

Good reliable sight if you use the same pellet weight/style all the time and are comfortable with getting it set at a specific range and then holding on the target at varying ranges to hit it dead center. Really hard to change windage and elevation accurately. No precise clicks for either settings.

Pros
Is well made great design.

Cons
It has no precise clicks for either settings. If you have big hands your going to have trouble trying to adjust this sight.

Good reliable sight if you use the same pellet weight/style all the time and are comfortable with getting it set at a specific range and then holding over/under a target at varying ranges to hit it dead center. Hard to change windage and elevation accurately. No precise clicks for either setting.

Pros
Very sturdy and reliable

Cons
Changing windage and elevation settings is a real trial and error chore. I have Williams Foolproofs on several of my hunting rifles. Really like them. But, don't like this particular model of sight on an air gun!